#599ABF
Closest named color: Faded Blue (#658CBB). oklch(65.8% 0.087 235.1), rgb(89, 154, 191).
Aa
Black text reads best on this color (6.79:1).
About this color
#599ABF is a medium-light, moderately saturated blue. In OKLCH its lightness is 66%, its chroma 0.087 and its hue 235°. Its hue sits on the cool side of the wheel. The nearest named color is Faded Blue (#658CBB), ΔE 0.039 away. Black text reads best on it, at 6.79:1.
| Hue family | Blues |
| Lightness | medium-light (66%) |
| Chroma | moderately saturated (0.087) |
| Temperature | cool |
| Nearest name | Faded Blue (#658CBB) |
| Black text | 6.79:1 |
| White text | 3.08:1 |
Values
| HEX | #599ABF |
| RGB | rgb(89, 154, 191) |
| HSL | hsl(202, 44%, 55%) |
| OKLCH | oklch(65.8% 0.087 235.1) |
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 #599ABF | 3.08:1 | AA large text | Lc -63.1 | Content text, not long reading |
| Black text on #599ABF | 6.79:1 | AA | Lc 46.4 | Large or bold text, headings |
| #599ABF text on white | 3.08:1 | AA large text | Lc 57.7 | Large or bold text, headings |
| #599ABF text on black | 6.79:1 | AA | Lc -44.1 | 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
#E2EBF1
oklch(93.5% 0.013 236.6)
-
Step 200
200
#CBDCE7
oklch(88.5% 0.024 236)
-
Step 300
300
#A7C6D8
oklch(81% 0.042 233.5)
-
Step 400
400
#77A8C5
oklch(70.7% 0.067 235)
-
Step 500
500 (this color)
#599ABF
oklch(65.8% 0.087 235.1)
-
Step 600
600
#327CA2
oklch(55.7% 0.093 234.4)
-
Step 700
700
#23688B
oklch(49.1% 0.088 234.9)
-
Step 800
800
#205571
oklch(42.7% 0.072 235.2)
-
Step 900
900
#20465B
oklch(37.6% 0.056 235.2)
-
Step 950
950
#142935
oklch(26.9% 0.035 235.2)
#599ABF 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) | #8999C1 | 0.055 |
| Deuteranopia (no green cones) | #7A8EBE | 0.046 |
| Tritanopia (no blue cones) | #15A4A6 | 0.068 |
| Achromatopsia (no color) | #939393 | 0.087 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #599ABF
#599ABF
oklch(65.8% 0.087 235.1)
- #BB835D
#BB835D
oklch(65.7% 0.087 54.8)
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 #599ABF, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Faded Blue #658CBB ΔE 0.039
- Greyblue #77A1B5 ΔE 0.043
- Silver Lake Blue #778DA9 ΔE 0.048
- Blue Grey #758DA3 ΔE 0.051
- Cadet Blue #5F9EA0 ΔE 0.052
- Dusty Blue #5A86AD ΔE 0.057
- Bluegrey #85A3B2 ΔE 0.062
- Cool Gray #8D99AE ΔE 0.063
Use #599ABF 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.