#12263F
Closest named color: Oxford Blue (#1B263B). oklch(26.6% 0.054 254.9), rgb(18, 38, 63).
Aa
White text reads best on this color (15.27:1).
About this color
#12263F is a dark, muted blue. In OKLCH its lightness is 27%, its chroma 0.054 and its hue 255°. Its hue sits on the cool side of the wheel. The nearest named color is Oxford Blue (#1B263B), ΔE 0.014 away. White text reads best on it, at 15.27:1.
| Hue family | Blues |
| Lightness | dark (27%) |
| Chroma | muted (0.054) |
| Temperature | cool |
| Nearest name | Oxford Blue (#1B263B) |
| Black text | 1.37:1 |
| White text | 15.27:1 |
Values
| HEX | #12263F |
| RGB | rgb(18, 38, 63) |
| HSL | hsl(213, 56%, 16%) |
| OKLCH | oklch(26.6% 0.054 254.9) |
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 #12263F | 15.27:1 | AAA | Lc -104.8 | Preferred for body text |
| Black text on #12263F | 1.37:1 | Fails | Lc 0.0 | Not readable |
| #12263F text on white | 15.27:1 | AAA | Lc 102.1 | Preferred for body text |
| #12263F text on black | 1.37:1 | 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
#F2F6FB
oklch(97.2% 0.008 253.9)
-
Step 100
100
#E2EBF6
oklch(93.7% 0.018 253.3)
-
Step 200
200
#CADBF1
oklch(88.6% 0.035 254.9)
-
Step 300
300
#A5C3EA
oklch(80.8% 0.064 255.1)
-
Step 400
400
#74A3DF
oklch(70.6% 0.102 254.9)
-
Step 500
500
#4F8BD6
oklch(63% 0.13 255)
-
Step 600
600
#3174C4
oklch(55.7% 0.142 254.8)
-
Step 700
700
#2361A9
oklch(49.2% 0.131 254.6)
-
Step 800
800
#1F4F89
oklch(42.6% 0.109 255)
-
Step 900
900
#1F426E
oklch(37.7% 0.086 255.3)
-
Step 950
950 (this color)
#12263F
oklch(26.6% 0.054 254.9)
#12263F 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) | #1B2840 | 0.015 |
| Deuteranopia (no green cones) | #15233E | 0.010 |
| Tritanopia (no blue cones) | #002C2F | 0.045 |
| Achromatopsia (no color) | #252525 | 0.054 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #12263F
#12263F
oklch(26.6% 0.054 254.9)
- #342102
#342102
oklch(26.5% 0.053 75.6)
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 #12263F, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Oxford Blue #1B263B ΔE 0.014
- Dark #1B2431 ΔE 0.027
- Jet #212529 ΔE 0.045
- Space Cadet #2B2D42 ΔE 0.046
- Rich Black #0D1B2A ΔE 0.052
- Gunmetal #293241 ΔE 0.055
- Marine #042E60 ΔE 0.061
- Prussian Blue #1D3557 ΔE 0.063
Use #12263F 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.