#122D4D
Closest named color: Prussian Blue (#1D3557). oklch(29.4% 0.067 254.3), rgb(18, 45, 77).
Aa
White text reads best on this color (13.92:1).
About this color
#122D4D is a dark, muted blue. In OKLCH its lightness is 29%, its chroma 0.067 and its hue 254°. Its hue sits on the cool side of the wheel. The nearest named color is Prussian Blue (#1D3557), ΔE 0.033 away. White text reads best on it, at 13.92:1.
| Hue family | Blues |
| Lightness | dark (29%) |
| Chroma | muted (0.067) |
| Temperature | cool |
| Nearest name | Prussian Blue (#1D3557) |
| Black text | 1.50:1 |
| White text | 13.92:1 |
Values
| HEX | #122D4D |
| RGB | rgb(18, 45, 77) |
| HSL | hsl(213, 62%, 19%) |
| OKLCH | oklch(29.4% 0.067 254.3) |
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 #122D4D | 13.92:1 | AAA | Lc -103.4 | Preferred for body text |
| Black text on #122D4D | 1.50:1 | Fails | Lc 0.0 | Not readable |
| #122D4D text on white | 13.92:1 | AAA | Lc 100.4 | Preferred for body text |
| #122D4D text on black | 1.50:1 | 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
#F1F6FD
oklch(97.1% 0.011 256.7)
-
Step 100
100
#E0EBF9
oklch(93.6% 0.022 254.4)
-
Step 200
200
#C6DBF7
oklch(88.5% 0.045 255.6)
-
Step 300
300
#9DC4F4
oklch(80.9% 0.08 253.9)
-
Step 400
400
#66A3EE
oklch(70.6% 0.128 254.4)
-
Step 500
500
#388AE9
oklch(63.1% 0.163 254.4)
-
Step 600
600
#0472D7
oklch(55.7% 0.177 254.2)
-
Step 700
700
#005FB7
oklch(49.1% 0.158 254.4)
-
Step 800
800
#014E97
oklch(42.8% 0.136 254.2)
-
Step 900
900
#104178
oklch(37.6% 0.107 254.6)
-
Step 950
950 (this color)
#122D4D
oklch(29.4% 0.067 254.3)
#122D4D 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) | #1E2F4E | 0.016 |
| Deuteranopia (no green cones) | #162A4C | 0.010 |
| Tritanopia (no blue cones) | #003439 | 0.051 |
| Achromatopsia (no color) | #2C2C2C | 0.067 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #122D4D
#122D4D
oklch(29.4% 0.067 254.3)
- #3E2700
#3E2700
oklch(29.4% 0.062 75.1)
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 #122D4D, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Prussian Blue #1D3557 ΔE 0.033
- Marine #042E60 ΔE 0.035
- Oxford Blue #1B263B ΔE 0.036
- Space Cadet #2B2D42 ΔE 0.038
- Gunmetal #293241 ΔE 0.043
- Midnight Green #073B4C ΔE 0.047
- Dark Blue Grey #1F3B4D ΔE 0.051
- Dark #1B2431 ΔE 0.054
Use #122D4D 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.