#1C274D
Closest named color: Oxford Blue (#1B263B). oklch(28.5% 0.071 269.3), rgb(28, 39, 77).
Aa
White text reads best on this color (14.51:1).
About this color
#1C274D is a dark, moderately saturated blue. In OKLCH its lightness is 28%, its chroma 0.071 and its hue 269°. Its hue sits on the cool side of the wheel. The nearest named color is Oxford Blue (#1B263B), ΔE 0.033 away. White text reads best on it, at 14.51:1.
| Hue family | Blues |
| Lightness | dark (28%) |
| Chroma | moderately saturated (0.071) |
| Temperature | cool |
| Nearest name | Oxford Blue (#1B263B) |
| Black text | 1.44:1 |
| White text | 14.51:1 |
Values
| HEX | #1C274D |
| RGB | rgb(28, 39, 77) |
| HSL | hsl(227, 47%, 21%) |
| OKLCH | oklch(28.5% 0.071 269.3) |
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 #1C274D | 14.51:1 | AAA | Lc -104.1 | Preferred for body text |
| Black text on #1C274D | 1.44:1 | Fails | Lc 0.0 | Not readable |
| #1C274D text on white | 14.51:1 | AAA | Lc 101.2 | Preferred for body text |
| #1C274D text on black | 1.44:1 | 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
#F2F5FD
oklch(97% 0.011 269.6)
-
Step 100
100
#E3EAFB
oklch(93.7% 0.024 267.9)
-
Step 200
200
#CCD9F9
oklch(88.6% 0.046 267.9)
-
Step 300
300
#ABBFF8
oklch(81% 0.084 269.5)
-
Step 400
400
#7F9BF5
oklch(70.7% 0.136 269.6)
-
Step 500
500
#6080F0
oklch(63.1% 0.171 269.1)
-
Step 600
600
#4966DF
oklch(55.6% 0.187 269.3)
-
Step 700
700
#3B54C2
oklch(49.2% 0.174 269.3)
-
Step 800
800
#30459D
oklch(42.7% 0.145 269.2)
-
Step 900
900
#2A3B7C
oklch(37.6% 0.112 269.4)
-
Step 950
950 (this color)
#1C274D
oklch(28.5% 0.071 269.3)
#1C274D 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) | #162B4E | 0.014 |
| Deuteranopia (no green cones) | #0F274C | 0.016 |
| Tritanopia (no blue cones) | #002F36 | 0.062 |
| Achromatopsia (no color) | #292929 | 0.071 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #1C274D
#1C274D
oklch(28.5% 0.071 269.3)
- #352800
#352800
oklch(28.4% 0.058 89.8)
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 #1C274D, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Oxford Blue #1B263B ΔE 0.033
- Space Cadet #2B2D42 ΔE 0.040
- Marine #042E60 ΔE 0.041
- Prussian Blue #1D3557 ΔE 0.045
- Dark #1B2431 ΔE 0.052
- Gunmetal #293241 ΔE 0.052
- Jet #212529 ΔE 0.066
- Midnight Green #073B4C ΔE 0.066
Use #1C274D 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.