#15445D
Closest named color: Dark Grey Blue (#29465B). oklch(36.8% 0.066 236), rgb(21, 68, 93).
Aa
White text reads best on this color (10.41:1).
About this color
#15445D is a dark, muted blue. In OKLCH its lightness is 37%, its chroma 0.066 and its hue 236°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Grey Blue (#29465B), ΔE 0.021 away. White text reads best on it, at 10.41:1.
| Hue family | Blues |
| Lightness | dark (37%) |
| Chroma | muted (0.066) |
| Temperature | cool |
| Nearest name | Dark Grey Blue (#29465B) |
| Black text | 2.01:1 |
| White text | 10.41:1 |
Values
| HEX | #15445D |
| RGB | rgb(21, 68, 93) |
| HSL | hsl(201, 63%, 22%) |
| OKLCH | oklch(36.8% 0.066 236) |
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 #15445D | 10.41:1 | AAA | Lc -97.9 | Preferred for body text |
| Black text on #15445D | 2.01:1 | Fails | Lc 10.0 | Not readable |
| #15445D text on white | 10.41:1 | AAA | Lc 93.9 | Preferred for body text |
| #15445D text on black | 2.01:1 | Fails | Lc -8.6 | 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
#F1F6F9
oklch(97% 0.007 233.6)
-
Step 100
100
#E1ECF2
oklch(93.7% 0.014 231.2)
-
Step 200
200
#C9DCE9
oklch(88.4% 0.027 237.6)
-
Step 300
300
#A3C6DD
oklch(80.9% 0.05 237)
-
Step 400
400
#6FA9CB
oklch(70.8% 0.078 235.2)
-
Step 500
500
#4492BE
oklch(63% 0.101 236.2)
-
Step 600
600
#1E7CAA
oklch(55.6% 0.109 235.8)
-
Step 700
700
#0C6892
oklch(49% 0.102 236.1)
-
Step 800
800
#115577
oklch(42.6% 0.085 236.5)
-
Step 900
900 (this color)
#15445D
oklch(36.8% 0.066 236)
-
Step 950
950
#102938
oklch(26.9% 0.042 237.4)
#15445D 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) | #38445E | 0.039 |
| Deuteranopia (no green cones) | #2E3D5D | 0.032 |
| Tritanopia (no blue cones) | #004A4D | 0.041 |
| Achromatopsia (no color) | #404040 | 0.066 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #15445D
#15445D
oklch(36.8% 0.066 236)
- #59351A
#59351A
oklch(36.7% 0.065 55.8)
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 #15445D, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Grey Blue #29465B ΔE 0.021
- Charcoal #264653 ΔE 0.025
- Dark Blue Grey #1F3B4D ΔE 0.035
- Midnight Green #073B4C ΔE 0.041
- Dark Teal #014D4E ΔE 0.046
- Prussian Blue #1D3557 ΔE 0.047
- Marine Blue #01386A ΔE 0.051
- Twilight Blue #0A437A ΔE 0.051
Use #15445D 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.