#1C284C
Closest named color: Oxford Blue (#1B263B). oklch(28.7% 0.068 268.1), rgb(28, 40, 76).
Aa
White text reads best on this color (14.41:1).
About this color
#1C284C is a dark, muted blue. In OKLCH its lightness is 29%, its chroma 0.068 and its hue 268°. Its hue sits on the cool side of the wheel. The nearest named color is Oxford Blue (#1B263B), ΔE 0.031 away. White text reads best on it, at 14.41:1.
| Hue family | Blues |
| Lightness | dark (29%) |
| Chroma | muted (0.068) |
| Temperature | cool |
| Nearest name | Oxford Blue (#1B263B) |
| Black text | 1.45:1 |
| White text | 14.41:1 |
Values
| HEX | #1C284C |
| RGB | rgb(28, 40, 76) |
| HSL | hsl(225, 46%, 20%) |
| OKLCH | oklch(28.7% 0.068 268.1) |
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 #1C284C | 14.41:1 | AAA | Lc -104.0 | Preferred for body text |
| Black text on #1C284C | 1.45:1 | Fails | Lc 0.0 | Not readable |
| #1C284C text on white | 14.41:1 | AAA | Lc 101.1 | Preferred for body text |
| #1C284C text on black | 1.45:1 | 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
#E3EAFA
oklch(93.6% 0.023 266.9)
-
Step 200
200
#CCD9F8
oklch(88.5% 0.045 267.4)
-
Step 300
300
#AABFF6
oklch(80.8% 0.082 268.3)
-
Step 400
400
#7E9CF1
oklch(70.6% 0.129 268.2)
-
Step 500
500
#5F81EC
oklch(63% 0.165 268.2)
-
Step 600
600
#4768DB
oklch(55.6% 0.18 268)
-
Step 700
700
#3956BE
oklch(49.2% 0.167 268)
-
Step 800
800
#2F4799
oklch(42.7% 0.137 267.9)
-
Step 900
900
#293C7A
oklch(37.6% 0.108 268.1)
-
Step 950
950 (this color)
#1C284C
oklch(28.7% 0.068 268.1)
#1C284C 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) | #182C4D | 0.013 |
| Deuteranopia (no green cones) | #12284B | 0.013 |
| Tritanopia (no blue cones) | #003036 | 0.061 |
| Achromatopsia (no color) | #2A2A2A | 0.068 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #1C284C
#1C284C
oklch(28.7% 0.068 268.1)
- #362800
#362800
oklch(28.5% 0.058 88.3)
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 #1C284C, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Oxford Blue #1B263B ΔE 0.031
- Space Cadet #2B2D42 ΔE 0.037
- Marine #042E60 ΔE 0.041
- Prussian Blue #1D3557 ΔE 0.043
- Gunmetal #293241 ΔE 0.048
- Dark #1B2431 ΔE 0.050
- Midnight Green #073B4C ΔE 0.063
- Dark Blue Grey #1F3B4D ΔE 0.063
Use #1C284C 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.