#1C2542
Closest named color: Oxford Blue (#1B263B). oklch(27.2% 0.055 269.4), rgb(28, 37, 66).
Aa
White text reads best on this color (15.07:1).
About this color
#1C2542 is a dark, muted blue. In OKLCH its lightness is 27%, its chroma 0.055 and its hue 269°. Its hue sits on the cool side of the wheel. The nearest named color is Oxford Blue (#1B263B), ΔE 0.015 away. White text reads best on it, at 15.07:1.
| Hue family | Blues |
| Lightness | dark (27%) |
| Chroma | muted (0.055) |
| Temperature | cool |
| Nearest name | Oxford Blue (#1B263B) |
| Black text | 1.39:1 |
| White text | 15.07:1 |
Values
| HEX | #1C2542 |
| RGB | rgb(28, 37, 66) |
| HSL | hsl(226, 40%, 18%) |
| OKLCH | oklch(27.2% 0.055 269.4) |
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 #1C2542 | 15.07:1 | AAA | Lc -104.7 | Preferred for body text |
| Black text on #1C2542 | 1.39:1 | Fails | Lc 0.0 | Not readable |
| #1C2542 text on white | 15.07:1 | AAA | Lc 101.9 | Preferred for body text |
| #1C2542 text on black | 1.39:1 | Fails | Lc 0.0 | 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 950.
-
Step 50
50
#F3F5FC
oklch(97.1% 0.01 273.4)
-
Step 100
100
#E5EAF7
oklch(93.7% 0.018 269.1)
-
Step 200
200
#CFD9F2
oklch(88.5% 0.036 268.3)
-
Step 300
300
#AFBFEC
oklch(80.8% 0.066 269.6)
-
Step 400
400
#869DE3
oklch(70.6% 0.106 269.7)
-
Step 500
500
#6984DA
oklch(63.1% 0.133 269.2)
-
Step 600
600
#526CC8
oklch(55.7% 0.145 269.4)
-
Step 700
700
#4259AD
oklch(49% 0.136 269.3)
-
Step 800
800
#37498C
oklch(42.7% 0.113 269.8)
-
Step 900
900
#2F3E70
oklch(37.7% 0.088 269.3)
-
Step 950
950 (this color)
#1C2542
oklch(27.2% 0.055 269.4)
#1C2542 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) | #1A2843 | 0.010 |
| Deuteranopia (no green cones) | #162541 | 0.009 |
| Tritanopia (no blue cones) | #0B2B30 | 0.049 |
| Achromatopsia (no color) | #262626 | 0.056 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #1C2542
#1C2542
oklch(27.2% 0.055 269.4)
- #322500
#322500
oklch(27.2% 0.056 88.7)
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 #1C2542, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Oxford Blue #1B263B ΔE 0.015
- Dark #1B2431 ΔE 0.032
- Space Cadet #2B2D42 ΔE 0.038
- Jet #212529 ΔE 0.048
- Gunmetal #293241 ΔE 0.051
- Prussian Blue #1D3557 ΔE 0.059
- Marine #042E60 ΔE 0.059
- Rich Black #0D1B2A ΔE 0.059
Use #1C2542 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.