#21486A
Closest named color: Dark Grey Blue (#29465B). oklch(39% 0.073 247.3), rgb(33, 72, 106).
Aa
White text reads best on this color (9.54:1).
About this color
#21486A is a dark, moderately saturated blue. In OKLCH its lightness is 39%, its chroma 0.073 and its hue 247°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Grey Blue (#29465B), ΔE 0.025 away. White text reads best on it, at 9.54:1.
| Hue family | Blues |
| Lightness | dark (39%) |
| Chroma | moderately saturated (0.073) |
| Temperature | cool |
| Nearest name | Dark Grey Blue (#29465B) |
| Black text | 2.19:1 |
| White text | 9.54:1 |
Values
| HEX | #21486A |
| RGB | rgb(33, 72, 106) |
| HSL | hsl(208, 53%, 27%) |
| OKLCH | oklch(39% 0.073 247.3) |
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 #21486A | 9.54:1 | AAA | Lc -96.2 | Preferred for body text |
| Black text on #21486A | 2.19:1 | Fails | Lc 12.1 | Not readable |
| #21486A text on white | 9.54:1 | AAA | Lc 91.9 | Preferred for body text |
| #21486A text on black | 2.19:1 | Fails | Lc -10.5 | 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
#F2F6FA
oklch(97.1% 0.007 247.9)
-
Step 100
100
#E2EBF4
oklch(93.6% 0.016 248)
-
Step 200
200
#CADCED
oklch(88.6% 0.03 246.6)
-
Step 300
300
#A5C5E3
oklch(81% 0.055 246.8)
-
Step 400
400
#73A6D5
oklch(70.7% 0.088 247.2)
-
Step 500
500
#4C8FC9
oklch(63.1% 0.111 246.8)
-
Step 600
600
#2C78B6
oklch(55.6% 0.121 247.1)
-
Step 700
700
#1E659D
oklch(49.2% 0.113 247)
-
Step 800
800
#1C527F
oklch(42.6% 0.094 247.5)
-
Step 900
900 (this color)
#21486A
oklch(39% 0.073 247.3)
-
Step 950
950
#12283C
oklch(26.9% 0.047 247.8)
#21486A 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) | #39496B | 0.029 |
| Deuteranopia (no green cones) | #2F4269 | 0.022 |
| Tritanopia (no blue cones) | #005054 | 0.056 |
| Achromatopsia (no color) | #454545 | 0.073 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #21486A
#21486A
oklch(39% 0.073 247.3)
- #5F3D13
#5F3D13
oklch(39.1% 0.073 67.9)
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 #21486A, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Grey Blue #29465B ΔE 0.025
- Twilight Blue #0A437A ΔE 0.038
- Charcoal #264653 ΔE 0.039
- Light Navy #155084 ΔE 0.045
- Deep Sea Blue #015482 ΔE 0.048
- Deep Teal #00555A ΔE 0.058
- Dark Blue Grey #1F3B4D ΔE 0.059
- Marine Blue #01386A ΔE 0.059
Use #21486A 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.