#204258
Closest named color: Dark Grey Blue (#29465B). oklch(36.4% 0.055 239.1), rgb(32, 66, 88).
Aa
White text reads best on this color (10.59:1).
About this color
#204258 is a dark, muted blue. In OKLCH its lightness is 36%, its chroma 0.055 and its hue 239°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Grey Blue (#29465B), ΔE 0.018 away. White text reads best on it, at 10.59:1.
| Hue family | Blues |
| Lightness | dark (36%) |
| Chroma | muted (0.055) |
| Temperature | cool |
| Nearest name | Dark Grey Blue (#29465B) |
| Black text | 1.98:1 |
| White text | 10.59:1 |
Values
| HEX | #204258 |
| RGB | rgb(32, 66, 88) |
| HSL | hsl(204, 47%, 24%) |
| OKLCH | oklch(36.4% 0.055 239.1) |
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 #204258 | 10.59:1 | AAA | Lc -98.4 | Preferred for body text |
| Black text on #204258 | 1.98:1 | Fails | Lc 9.5 | Not readable |
| #204258 text on white | 10.59:1 | AAA | Lc 94.4 | Preferred for body text |
| #204258 text on black | 1.98:1 | Fails | Lc -8.1 | Not readable |
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 900.
-
Step 50
50
#F2F6F9
oklch(97.1% 0.006 239.8)
-
Step 100
100
#E3EBF1
oklch(93.6% 0.012 239.9)
-
Step 200
200
#CCDCE7
oklch(88.6% 0.023 237.7)
-
Step 300
300
#A9C5D9
oklch(80.9% 0.041 239.1)
-
Step 400
400
#7AA7C6
oklch(70.7% 0.066 239)
-
Step 500
500
#5691B7
oklch(63.2% 0.084 238.3)
-
Step 600
600
#397AA3
oklch(55.5% 0.092 239.1)
-
Step 700
700
#2B678C
oklch(49.1% 0.086 239)
-
Step 800
800
#255471
oklch(42.7% 0.07 238.6)
-
Step 900
900 (this color)
#204258
oklch(36.4% 0.055 239.1)
-
Step 950
950
#162936
oklch(27.1% 0.035 239.7)
#204258 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) | #384259 | 0.031 |
| Deuteranopia (no green cones) | #303C58 | 0.026 |
| Tritanopia (no blue cones) | #004849 | 0.043 |
| Achromatopsia (no color) | #3F3F3F | 0.055 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #204258
#204258
oklch(36.4% 0.055 239.1)
- #54371F
#54371F
oklch(36.5% 0.055 59.4)
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 #204258, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Grey Blue #29465B ΔE 0.018
- Charcoal #264653 ΔE 0.019
- Dark Blue Grey #1F3B4D ΔE 0.027
- Midnight Green #073B4C ΔE 0.037
- Prussian Blue #1D3557 ΔE 0.043
- Onyx #343A40 ΔE 0.046
- Dark Teal #014D4E ΔE 0.048
- Charcoal Grey #3C4142 ΔE 0.050
Use #204258 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.