#20405A
Closest named color: Dark Grey Blue (#29465B). oklch(36% 0.059 245), rgb(32, 64, 90).
Aa
White text reads best on this color (10.81:1).
About this color
#20405A is a dark, muted blue. In OKLCH its lightness is 36%, its chroma 0.059 and its hue 245°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Grey Blue (#29465B), ΔE 0.023 away. White text reads best on it, at 10.81:1.
| Hue family | Blues |
| Lightness | dark (36%) |
| Chroma | muted (0.059) |
| Temperature | cool |
| Nearest name | Dark Grey Blue (#29465B) |
| Black text | 1.94:1 |
| White text | 10.81:1 |
Values
| HEX | #20405A |
| RGB | rgb(32, 64, 90) |
| HSL | hsl(207, 48%, 24%) |
| OKLCH | oklch(36% 0.059 245) |
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 #20405A | 10.81:1 | AAA | Lc -98.8 | Preferred for body text |
| Black text on #20405A | 1.94:1 | Fails | Lc 9.0 | Not readable |
| #20405A text on white | 10.81:1 | AAA | Lc 94.9 | Preferred for body text |
| #20405A text on black | 1.94:1 | Fails | Lc -7.7 | 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
#E3EBF2
oklch(93.6% 0.013 244.3)
-
Step 200
200
#CCDBE9
oklch(88.4% 0.025 246.2)
-
Step 300
300
#AAC4DC
oklch(80.9% 0.044 246.2)
-
Step 400
400
#7BA6CA
oklch(70.7% 0.07 244.3)
-
Step 500
500
#588FBD
oklch(63.1% 0.091 245.2)
-
Step 600
600
#3C79A9
oklch(55.7% 0.098 244.7)
-
Step 700
700
#2E6591
oklch(49% 0.092 245.4)
-
Step 800
800
#275376
oklch(42.8% 0.076 245)
-
Step 900
900 (this color)
#20405A
oklch(36% 0.059 245)
-
Step 950
950
#162838
oklch(26.9% 0.038 246.6)
#20405A 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) | #35415B | 0.027 |
| Deuteranopia (no green cones) | #2D3B5A | 0.021 |
| Tritanopia (no blue cones) | #004649 | 0.046 |
| Achromatopsia (no color) | #3D3D3D | 0.059 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #20405A
#20405A
oklch(36% 0.059 245)
- #523619
#523619
oklch(35.9% 0.059 64.9)
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 #20405A, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Grey Blue #29465B ΔE 0.023
- Dark Blue Grey #1F3B4D ΔE 0.025
- Charcoal #264653 ΔE 0.027
- Prussian Blue #1D3557 ΔE 0.036
- Midnight Green #073B4C ΔE 0.036
- Onyx #343A40 ΔE 0.048
- Marine Blue #01386A ΔE 0.048
- Gunmetal #293241 ΔE 0.054
Use #20405A 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.