#598AD2
Closest named color: Dark Sky Blue (#448EE4). oklch(63.1% 0.122 257.9), rgb(89, 138, 210).
Aa
Black text reads best on this color (5.99:1).
About this color
#598AD2 is a medium-light, moderately saturated blue. In OKLCH its lightness is 63%, its chroma 0.122 and its hue 258°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Sky Blue (#448EE4), ΔE 0.031 away. Black text reads best on it, at 5.99:1.
| Hue family | Blues |
| Lightness | medium-light (63%) |
| Chroma | moderately saturated (0.122) |
| Temperature | cool |
| Nearest name | Dark Sky Blue (#448EE4) |
| Black text | 5.99:1 |
| White text | 3.50:1 |
Values
| HEX | #598AD2 |
| RGB | rgb(89, 138, 210) |
| HSL | hsl(216, 57%, 59%) |
| OKLCH | oklch(63.1% 0.122 257.9) |
Contrast
WCAG 2 contrast ratios are the conformance target: AA needs 4.5:1 for body text and 3:1 for large text, AAA needs 7:1. APCA Lc values are supplementary guidance from the WCAG 3 drafts.
| Pair | WCAG 2 | Result | APCA | APCA guidance |
|---|---|---|---|---|
| White text on #598AD2 | 3.50:1 | AA large text | Lc -67.9 | Content text, not long reading |
| Black text on #598AD2 | 5.99:1 | AA | Lc 41.6 | Non-text elements, placeholder text |
| #598AD2 text on white | 3.50:1 | AA large text | Lc 62.4 | Content text, not long reading |
| #598AD2 text on black | 5.99:1 | AA | Lc -39.2 | Non-text elements, placeholder text |
Tints and shades
A 50–950 scale built in OKLCH: the hue is held, lightness follows a Tailwind v4-like curve, and every step is kept inside the sRGB gamut. This color sits at step 500.
-
Step 50
50
#F2F6FB
oklch(97.2% 0.008 253.9)
-
Step 100
100
#E3EAF6
oklch(93.5% 0.018 261.3)
-
Step 200
200
#CCDAEF
oklch(88.4% 0.033 258.4)
-
Step 300
300
#A9C2E7
oklch(80.8% 0.059 258.1)
-
Step 400
400
#7BA2DC
oklch(70.6% 0.096 258.1)
-
Step 500
500 (this color)
#598AD2
oklch(63.1% 0.122 257.9)
-
Step 600
600
#3E73BF
oklch(55.6% 0.131 257.6)
-
Step 700
700
#3060A5
oklch(49.1% 0.123 257.7)
-
Step 800
800
#294F86
oklch(42.9% 0.101 257.8)
-
Step 900
900
#25426B
oklch(37.8% 0.079 257.2)
-
Step 950
950
#16273F
oklch(27.1% 0.05 257.1)
#598AD2 with color blindness
Simulated with the Machado et al. (2009) model. ΔE is how far the color moves: below about 0.02 you would not notice a change.
| Vision | Seen as | Shift (ΔE) |
|---|---|---|
| Protanopia (no red cones) | #6C8FD5 | 0.027 |
| Deuteranopia (no green cones) | #5D84D0 | 0.016 |
| Tritanopia (no blue cones) | #009AA4 | 0.106 |
| Achromatopsia (no color) | #898989 | 0.122 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #598AD2
#598AD2
oklch(63.1% 0.122 257.9)
- #B17F1F
#B17F1F
oklch(63.1% 0.121 78.3)
Analogous
Neighbouring hues, 30° either side.
Split complementary
The two hues beside the complement (150° and 210°).
Triadic
Three hues spaced 120° apart.
Palettes with this color
Curated palettes that contain a color within ΔE 0.04 (OKLab) of #598AD2, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Sky Blue #448EE4 ΔE 0.031
- Faded Blue #658CBB ΔE 0.039
- Soft Blue #6488EA ΔE 0.040
- Cool Blue #4984B8 ΔE 0.045
- Chefchaouen Blue #4895EF ΔE 0.047
- Cornflower Blue #6495ED ΔE 0.049
- Water Blue #0E87CC ΔE 0.051
- Steel Blue #4682B4 ΔE 0.053
Use #598AD2 in your product
Turn it into light and dark UI roles checked for contrast, then export to Tailwind v4, shadcn/ui, CSS or design tokens.