#595EB8
Closest named color: Iris (#6258C4). oklch(52.3% 0.139 278), rgb(89, 94, 184).
Aa
White text reads best on this color (5.64:1).
About this color
#595EB8 is a medium-dark, moderately saturated blue. In OKLCH its lightness is 52%, its chroma 0.139 and its hue 278°. Its hue sits on the cool side of the wheel. The nearest named color is Iris (#6258C4), ΔE 0.028 away. White text reads best on it, at 5.64:1.
| Hue family | Blues |
| Lightness | medium-dark (52%) |
| Chroma | moderately saturated (0.139) |
| Temperature | cool |
| Nearest name | Iris (#6258C4) |
| Black text | 3.71:1 |
| White text | 5.64:1 |
Values
| HEX | #595EB8 |
| RGB | rgb(89, 94, 184) |
| HSL | hsl(237, 40%, 54%) |
| OKLCH | oklch(52.3% 0.139 278) |
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 #595EB8 | 5.64:1 | AA | Lc -83.3 | Fine for body text |
| Black text on #595EB8 | 3.71:1 | AA large text | Lc 26.0 | Dividers and decoration only |
| #595EB8 text on white | 5.64:1 | AA | Lc 78.0 | Fine for body text |
| #595EB8 text on black | 3.71:1 | AA large text | Lc -23.7 | Dividers and decoration only |
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 700.
-
Step 50
50
#F4F5FC
oklch(97.1% 0.009 279.7)
-
Step 100
100
#E6E9F7
oklch(93.6% 0.019 276.3)
-
Step 200
200
#D3D7F2
oklch(88.4% 0.037 278.9)
-
Step 300
300
#B6BDEC
oklch(80.9% 0.067 278.2)
-
Step 400
400
#919AE3
oklch(70.8% 0.107 277.9)
-
Step 500
500
#777FDB
oklch(63.1% 0.137 277.9)
-
Step 600
600
#6166C9
oklch(55.6% 0.151 278.1)
-
Step 700
700 (this color)
#595EB8
oklch(52.3% 0.139 278)
-
Step 800
800
#42468C
oklch(42.8% 0.114 278)
-
Step 900
900
#373B70
oklch(37.7% 0.09 277.9)
-
Step 950
950
#202342
oklch(27% 0.057 277.6)
#595EB8 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) | #346BBB | 0.049 |
| Deuteranopia (no green cones) | #2B63B6 | 0.051 |
| Tritanopia (no blue cones) | #317282 | 0.123 |
| Achromatopsia (no color) | #676767 | 0.140 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #595EB8
#595EB8
oklch(52.3% 0.139 278)
- #7B6A00
#7B6A00
oklch(52.5% 0.108 98.1)
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 #595EB8, closest first.
No curated palette has a color within ΔE 0.04 of #595EB8.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Iris #6258C4 ΔE 0.028
- Slate Blue #6A5ACD ΔE 0.043
- Dark Periwinkle #665FD1 ΔE 0.044
- French Blue #436BAD ΔE 0.048
- Light Indigo #6D5ACF ΔE 0.048
- Mid Blue #276AB3 ΔE 0.058
- Warm Blue #4B57DB ΔE 0.062
- Dusky Blue #475F94 ΔE 0.064
Use #595EB8 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.