#598FB2
Closest named color: Faded Blue (#658CBB). oklch(62.6% 0.078 238.2), rgb(89, 143, 178).
Aa
Black text reads best on this color (5.99:1).
About this color
#598FB2 is a medium-light, moderately saturated blue. In OKLCH its lightness is 63%, its chroma 0.078 and its hue 238°. Its hue sits on the cool side of the wheel. The nearest named color is Faded Blue (#658CBB), ΔE 0.023 away. Black text reads best on it, at 5.99:1.
| Hue family | Blues |
| Lightness | medium-light (63%) |
| Chroma | moderately saturated (0.078) |
| Temperature | cool |
| Nearest name | Faded Blue (#658CBB) |
| Black text | 5.99:1 |
| White text | 3.50:1 |
Values
| HEX | #598FB2 |
| RGB | rgb(89, 143, 178) |
| HSL | hsl(204, 37%, 52%) |
| OKLCH | oklch(62.6% 0.078 238.2) |
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 #598FB2 | 3.50:1 | AA large text | Lc -68.0 | Content text, not long reading |
| Black text on #598FB2 | 5.99:1 | AA | Lc 41.6 | Non-text elements, placeholder text |
| #598FB2 text on white | 3.50:1 | AA large text | Lc 62.5 | Content text, not long reading |
| #598FB2 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
#F2F6F8
oklch(97.1% 0.005 228.8)
-
Step 100
100
#E3EBF0
oklch(93.5% 0.011 234.8)
-
Step 200
200
#CDDCE6
oklch(88.6% 0.021 236.8)
-
Step 300
300
#ABC5D7
oklch(81% 0.038 238.2)
-
Step 400
400
#7DA7C3
oklch(70.8% 0.061 237.9)
-
Step 500
500 (this color)
#598FB2
oklch(62.6% 0.078 238.2)
-
Step 600
600
#3F7A9F
oklch(55.6% 0.084 238.4)
-
Step 700
700
#306788
oklch(49.1% 0.079 237.7)
-
Step 800
800
#29546F
oklch(42.7% 0.066 238.5)
-
Step 900
900
#26455A
oklch(37.6% 0.052 239.7)
-
Step 950
950
#172934
oklch(27.1% 0.031 236.4)
#598FB2 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) | #7F8EB4 | 0.045 |
| Deuteranopia (no green cones) | #7385B1 | 0.038 |
| Tritanopia (no blue cones) | #2C989B | 0.062 |
| Achromatopsia (no color) | #898989 | 0.078 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #598FB2
#598FB2
oklch(62.6% 0.078 238.2)
- #AC7C58
#AC7C58
oklch(62.6% 0.078 57.6)
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 #598FB2, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Faded Blue #658CBB ΔE 0.023
- Dusty Blue #5A86AD ΔE 0.025
- Off Blue #5684AE ΔE 0.032
- Silver Lake Blue #778DA9 ΔE 0.035
- Blue Grey #758DA3 ΔE 0.036
- Cool Blue #4984B8 ΔE 0.040
- Steel Blue #4682B4 ΔE 0.045
- Light Slate Gray #778899 ΔE 0.047
Use #598FB2 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.