#1C445B
Closest named color: Dark Grey Blue (#29465B). oklch(36.9% 0.06 236.8), rgb(28, 68, 91).
Aa
White text reads best on this color (10.35:1).
About this color
#1C445B is a dark, muted blue. In OKLCH its lightness is 37%, its chroma 0.060 and its hue 237°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Grey Blue (#29465B), ΔE 0.016 away. White text reads best on it, at 10.35:1.
| Hue family | Blues |
| Lightness | dark (37%) |
| Chroma | muted (0.060) |
| Temperature | cool |
| Nearest name | Dark Grey Blue (#29465B) |
| Black text | 2.02:1 |
| White text | 10.35:1 |
Values
| HEX | #1C445B |
| RGB | rgb(28, 68, 91) |
| HSL | hsl(202, 53%, 23%) |
| OKLCH | oklch(36.9% 0.06 236.8) |
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 #1C445B | 10.35:1 | AAA | Lc -97.9 | Preferred for body text |
| Black text on #1C445B | 2.02:1 | Fails | Lc 10.1 | Not readable |
| #1C445B text on white | 10.35:1 | AAA | Lc 93.9 | Preferred for body text |
| #1C445B text on black | 2.02:1 | Fails | Lc -8.7 | 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
#E2EBF2
oklch(93.5% 0.014 241)
-
Step 200
200
#CADCE8
oklch(88.5% 0.025 236.9)
-
Step 300
300
#A6C6DA
oklch(81% 0.045 235.5)
-
Step 400
400
#75A8C8
oklch(70.8% 0.072 236.7)
-
Step 500
500
#4E92BA
oklch(63.2% 0.092 236.5)
-
Step 600
600
#2E7BA6
oklch(55.5% 0.1 237.1)
-
Step 700
700
#1F688E
oklch(49.1% 0.092 236.3)
-
Step 800
800
#1D5573
oklch(42.7% 0.076 236.1)
-
Step 900
900 (this color)
#1C445B
oklch(36.9% 0.06 236.8)
-
Step 950
950
#132937
oklch(27% 0.038 238.3)
#1C445B 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) | #39445C | 0.035 |
| Deuteranopia (no green cones) | #313D5B | 0.031 |
| Tritanopia (no blue cones) | #004A4C | 0.041 |
| Achromatopsia (no color) | #404040 | 0.060 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #1C445B
#1C445B
oklch(36.9% 0.06 236.8)
- #57371E
#57371E
oklch(36.9% 0.059 57.5)
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 #1C445B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Grey Blue #29465B ΔE 0.016
- Charcoal #264653 ΔE 0.020
- Dark Blue Grey #1F3B4D ΔE 0.033
- Midnight Green #073B4C ΔE 0.042
- Dark Teal #014D4E ΔE 0.045
- Prussian Blue #1D3557 ΔE 0.048
- Dark Slate Gray #2F4F4F ΔE 0.052
- Onyx #343A40 ΔE 0.053
Use #1C445B 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.