#598CD8
Closest named color: Dark Sky Blue (#448EE4). oklch(63.8% 0.127 258.2), rgb(89, 140, 216).
Aa
Black text reads best on this color (6.16:1).
About this color
#598CD8 is a medium-light, moderately saturated blue. In OKLCH its lightness is 64%, its chroma 0.127 and its hue 258°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Sky Blue (#448EE4), ΔE 0.024 away. Black text reads best on it, at 6.16:1.
| Hue family | Blues |
| Lightness | medium-light (64%) |
| Chroma | moderately saturated (0.127) |
| Temperature | cool |
| Nearest name | Dark Sky Blue (#448EE4) |
| Black text | 6.16:1 |
| White text | 3.40:1 |
Values
| HEX | #598CD8 |
| RGB | rgb(89, 140, 216) |
| HSL | hsl(216, 62%, 60%) |
| OKLCH | oklch(63.8% 0.127 258.2) |
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 #598CD8 | 3.40:1 | AA large text | Lc -66.8 | Content text, not long reading |
| Black text on #598CD8 | 6.16:1 | AA | Lc 42.7 | Non-text elements, placeholder text |
| #598CD8 text on white | 3.40:1 | AA large text | Lc 61.4 | Content text, not long reading |
| #598CD8 text on black | 6.16:1 | AA | Lc -40.3 | 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
#CBDAF1
oklch(88.4% 0.036 258.9)
-
Step 300
300
#A8C2E9
oklch(80.8% 0.062 258.4)
-
Step 400
400
#7AA2DF
oklch(70.7% 0.1 258.6)
-
Step 500
500 (this color)
#598CD8
oklch(63.8% 0.127 258.2)
-
Step 600
600
#3C72C3
oklch(55.6% 0.139 258.4)
-
Step 700
700
#2E5FA8
oklch(49% 0.129 258.4)
-
Step 800
800
#274E88
oklch(42.7% 0.106 258.3)
-
Step 900
900
#24416D
oklch(37.6% 0.084 258.5)
-
Step 950
950
#162740
oklch(27.2% 0.052 257.9)
#598CD8 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) | #6C92DB | 0.028 |
| Deuteranopia (no green cones) | #5C86D6 | 0.016 |
| Tritanopia (no blue cones) | #009DA8 | 0.109 |
| Achromatopsia (no color) | #8B8B8B | 0.127 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #598CD8
#598CD8
oklch(63.8% 0.127 258.2)
- #B58016
#B58016
oklch(63.7% 0.127 78)
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 #598CD8, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Sky Blue #448EE4 ΔE 0.024
- Soft Blue #6488EA ΔE 0.034
- Chefchaouen Blue #4895EF ΔE 0.038
- Cornflower Blue #6495ED ΔE 0.040
- Faded Blue #658CBB ΔE 0.045
- Cool Blue #4984B8 ΔE 0.054
- Water Blue #0E87CC ΔE 0.055
- Steel Blue #4682B4 ΔE 0.063
Use #598CD8 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.