#599ABB
Closest named color: Faded Blue (#658CBB). oklch(65.6% 0.083 232), rgb(89, 154, 187).
Aa
Black text reads best on this color (6.76:1).
About this color
#599ABB is a medium-light, moderately saturated blue. In OKLCH its lightness is 66%, its chroma 0.083 and its hue 232°. Its hue sits on the cool side of the wheel. The nearest named color is Faded Blue (#658CBB), ΔE 0.040 away. Black text reads best on it, at 6.76:1.
| Hue family | Blues |
| Lightness | medium-light (66%) |
| Chroma | moderately saturated (0.083) |
| Temperature | cool |
| Nearest name | Faded Blue (#658CBB) |
| Black text | 6.76:1 |
| White text | 3.10:1 |
Values
| HEX | #599ABB |
| RGB | rgb(89, 154, 187) |
| HSL | hsl(200, 42%, 54%) |
| OKLCH | oklch(65.6% 0.083 232) |
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 #599ABB | 3.10:1 | AA large text | Lc -63.3 | Content text, not long reading |
| Black text on #599ABB | 6.76:1 | AA | Lc 46.2 | Large or bold text, headings |
| #599ABB text on white | 3.10:1 | AA large text | Lc 57.9 | Large or bold text, headings |
| #599ABB text on black | 6.76:1 | AA | Lc -43.9 | 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
#F2F6F8
oklch(97.1% 0.005 228.8)
-
Step 100
100
#E3EBF0
oklch(93.5% 0.011 234.8)
-
Step 200
200
#CBDCE6
oklch(88.5% 0.023 233.4)
-
Step 300
300
#A7C6D7
oklch(80.9% 0.041 231.9)
-
Step 400
400
#77A8C2
oklch(70.6% 0.065 232)
-
Step 500
500 (this color)
#599ABB
oklch(65.6% 0.083 232)
-
Step 600
600
#327C9F
oklch(55.5% 0.09 232.2)
-
Step 700
700
#246988
oklch(49.2% 0.084 231.6)
-
Step 800
800
#20556E
oklch(42.6% 0.069 232.1)
-
Step 900
900
#204759
oklch(37.8% 0.054 230.4)
-
Step 950
950
#142934
oklch(26.9% 0.034 232.8)
#599ABB 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) | #8A98BD | 0.057 |
| Deuteranopia (no green cones) | #7C8EBB | 0.049 |
| Tritanopia (no blue cones) | #1CA3A5 | 0.062 |
| Achromatopsia (no color) | #929292 | 0.083 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #599ABB
#599ABB
oklch(65.6% 0.083 232)
- #BA8361
#BA8361
oklch(65.7% 0.083 52.5)
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 #599ABB, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Faded Blue #658CBB ΔE 0.040
- Greyblue #77A1B5 ΔE 0.041
- Silver Lake Blue #778DA9 ΔE 0.046
- Cadet Blue #5F9EA0 ΔE 0.046
- Blue Grey #758DA3 ΔE 0.048
- Dusty Blue #5A86AD ΔE 0.056
- Bluegrey #85A3B2 ΔE 0.060
- Cool Gray #8D99AE ΔE 0.061
Use #599ABB 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.