#215288
Closest named color: Dusk Blue (#26538D). oklch(43.4% 0.104 253.2), rgb(33, 82, 136).
Aa
White text reads best on this color (7.99:1).
About this color
#215288 is a dark, moderately saturated blue. In OKLCH its lightness is 43%, its chroma 0.104 and its hue 253°. Its hue sits on the cool side of the wheel. The nearest named color is Dusk Blue (#26538D), ΔE 0.010 away. White text reads best on it, at 7.99:1.
| Hue family | Blues |
| Lightness | dark (43%) |
| Chroma | moderately saturated (0.104) |
| Temperature | cool |
| Nearest name | Dusk Blue (#26538D) |
| Black text | 2.62:1 |
| White text | 7.99:1 |
Values
| HEX | #215288 |
| RGB | rgb(33, 82, 136) |
| HSL | hsl(211, 61%, 33%) |
| OKLCH | oklch(43.4% 0.104 253.2) |
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 #215288 | 7.99:1 | AAA | Lc -92.1 | Preferred for body text |
| Black text on #215288 | 2.62:1 | Fails | Lc 16.6 | Dividers and decoration only |
| #215288 text on white | 7.99:1 | AAA | Lc 87.4 | Fine for body text |
| #215288 text on black | 2.62:1 | Fails | Lc -14.7 | 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 800.
-
Step 50
50
#F2F6FB
oklch(97.2% 0.008 253.9)
-
Step 100
100
#E2EBF6
oklch(93.7% 0.018 253.3)
-
Step 200
200
#CADBEF
oklch(88.5% 0.033 252.5)
-
Step 300
300
#A6C4E8
oklch(81% 0.061 253.2)
-
Step 400
400
#75A4DC
oklch(70.7% 0.097 253.4)
-
Step 500
500
#4F8CD2
oklch(63% 0.124 253.2)
-
Step 600
600
#3175C0
oklch(55.7% 0.135 253.3)
-
Step 700
700
#2362A5
oklch(49.1% 0.125 253)
-
Step 800
800 (this color)
#215288
oklch(43.4% 0.104 253.2)
-
Step 900
900
#1F436B
oklch(37.7% 0.08 252.8)
-
Step 950
950
#13273F
oklch(26.9% 0.052 254)
#215288 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) | #39568A | 0.029 |
| Deuteranopia (no green cones) | #294C87 | 0.018 |
| Tritanopia (no blue cones) | #005F66 | 0.080 |
| Achromatopsia (no color) | #515151 | 0.104 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #215288
#215288
oklch(43.4% 0.104 253.2)
- #6F4700
#6F4700
oklch(43.3% 0.092 72.7)
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 #215288, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dusk Blue #26538D ΔE 0.010
- Light Navy #155084 ΔE 0.013
- Deep Sea Blue #015482 ΔE 0.020
- Light Navy Blue #2E5A88 ΔE 0.029
- Cobalt #1E488F ΔE 0.033
- Denim Blue #3B5B92 ΔE 0.042
- Twilight Blue #0A437A ΔE 0.053
- Twilight #4E518B ΔE 0.053
Use #215288 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.