#598ABC
Closest named color: Faded Blue (#658CBB). oklch(61.9% 0.093 250), rgb(89, 138, 188).
Aa
Black text reads best on this color (5.78:1).
About this color
#598ABC is a medium-dark, moderately saturated blue. In OKLCH its lightness is 62%, its chroma 0.093 and its hue 250°. Its hue sits on the cool side of the wheel. The nearest named color is Faded Blue (#658CBB), ΔE 0.015 away. Black text reads best on it, at 5.78:1.
| Hue family | Blues |
| Lightness | medium-dark (62%) |
| Chroma | moderately saturated (0.093) |
| Temperature | cool |
| Nearest name | Faded Blue (#658CBB) |
| Black text | 5.78:1 |
| White text | 3.62:1 |
Values
| HEX | #598ABC |
| RGB | rgb(89, 138, 188) |
| HSL | hsl(210, 42%, 54%) |
| OKLCH | oklch(61.9% 0.093 250) |
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 #598ABC | 3.62:1 | AA large text | Lc -69.3 | Content text, not long reading |
| Black text on #598ABC | 5.78:1 | AA | Lc 40.3 | Non-text elements, placeholder text |
| #598ABC text on white | 3.62:1 | AA large text | Lc 63.8 | Content text, not long reading |
| #598ABC text on black | 5.78:1 | AA | Lc -37.9 | 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
#F2F6F9
oklch(97.1% 0.006 239.8)
-
Step 100
100
#E3EBF3
oklch(93.6% 0.014 248)
-
Step 200
200
#CDDBEA
oklch(88.5% 0.026 250)
-
Step 300
300
#ABC4DD
oklch(81% 0.045 248.4)
-
Step 400
400
#7EA4CD
oklch(70.6% 0.073 250.8)
-
Step 500
500 (this color)
#598ABC
oklch(61.9% 0.093 250)
-
Step 600
600
#4177AC
oklch(55.6% 0.101 249.7)
-
Step 700
700
#336494
oklch(49.2% 0.094 249.9)
-
Step 800
800
#2B5278
oklch(42.8% 0.078 249.5)
-
Step 900
900
#274461
oklch(37.8% 0.061 249.7)
-
Step 950
950
#172839
oklch(27.1% 0.039 249.5)
#598ABC 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) | #768CBE | 0.036 |
| Deuteranopia (no green cones) | #6982BB | 0.027 |
| Tritanopia (no blue cones) | #22969B | 0.081 |
| Achromatopsia (no color) | #868686 | 0.093 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #598ABC
#598ABC
oklch(61.9% 0.093 250)
- #AA7C44
#AA7C44
oklch(62% 0.093 70.1)
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 #598ABC, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Faded Blue #658CBB ΔE 0.015
- Dusty Blue #5A86AD ΔE 0.023
- Off Blue #5684AE ΔE 0.025
- Cool Blue #4984B8 ΔE 0.025
- Steel Blue #4682B4 ΔE 0.033
- Silver Lake Blue #778DA9 ΔE 0.047
- Blue NCS #118AB2 ΔE 0.051
- Blue Grey #758DA3 ΔE 0.052
Use #598ABC 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.