#21495F
Closest named color: Dark Grey Blue (#29465B). oklch(38.7% 0.059 235.1), rgb(33, 73, 95).
Aa
White text reads best on this color (9.62:1).
About this color
#21495F is a dark, muted blue. In OKLCH its lightness is 39%, its chroma 0.059 and its hue 235°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Grey Blue (#29465B), ΔE 0.012 away. White text reads best on it, at 9.62:1.
| Hue family | Blues |
| Lightness | dark (39%) |
| Chroma | muted (0.059) |
| Temperature | cool |
| Nearest name | Dark Grey Blue (#29465B) |
| Black text | 2.18:1 |
| White text | 9.62:1 |
Values
| HEX | #21495F |
| RGB | rgb(33, 73, 95) |
| HSL | hsl(201, 48%, 25%) |
| OKLCH | oklch(38.7% 0.059 235.1) |
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 #21495F | 9.62:1 | AAA | Lc -96.4 | Preferred for body text |
| Black text on #21495F | 2.18:1 | Fails | Lc 11.8 | Not readable |
| #21495F text on white | 9.62:1 | AAA | Lc 92.1 | Preferred for body text |
| #21495F text on black | 2.18:1 | Fails | Lc -10.3 | 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
#E2EBF1
oklch(93.5% 0.013 236.6)
-
Step 200
200
#CADCE7
oklch(88.4% 0.025 234.5)
-
Step 300
300
#A6C6D9
oklch(80.9% 0.044 234.1)
-
Step 400
400
#75A8C6
oklch(70.7% 0.07 234.9)
-
Step 500
500
#4E92B8
oklch(63.1% 0.09 235.1)
-
Step 600
600
#2E7CA4
oklch(55.7% 0.097 234.9)
-
Step 700
700
#1F688D
oklch(49.1% 0.091 235.5)
-
Step 800
800
#1D5572
oklch(42.7% 0.075 235.2)
-
Step 900
900 (this color)
#21495F
oklch(38.7% 0.059 235.1)
-
Step 950
950
#132936
oklch(26.9% 0.037 236.3)
#21495F 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) | #3F4860 | 0.037 |
| Deuteranopia (no green cones) | #36425F | 0.031 |
| Tritanopia (no blue cones) | #004F50 | 0.042 |
| Achromatopsia (no color) | #454545 | 0.059 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #21495F
#21495F
oklch(38.7% 0.059 235.1)
- #5C3B24
#5C3B24
oklch(38.5% 0.059 54.9)
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 #21495F, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Grey Blue #29465B ΔE 0.012
- Charcoal #264653 ΔE 0.020
- Dark Slate Gray #2F4F4F ΔE 0.041
- Dark Teal #014D4E ΔE 0.042
- Deep Teal #00555A ΔE 0.044
- Dark Blue Grey #1F3B4D ΔE 0.050
- Charcoal Grey #3C4142 ΔE 0.055
- Twilight Blue #0A437A ΔE 0.056
Use #21495F 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.