#00122F
Closest named color: Rich Black (#0D1B2A). oklch(18.7% 0.065 256.3), rgb(0, 18, 47).
Aa
White text reads best on this color (18.62:1).
About this color
#00122F is a very dark, muted blue. In OKLCH its lightness is 19%, its chroma 0.065 and its hue 256°. Its hue sits on the cool side of the wheel. The nearest named color is Rich Black (#0D1B2A), ΔE 0.042 away. White text reads best on it, at 18.62:1.
| Hue family | Blues |
| Lightness | very dark (19%) |
| Chroma | muted (0.065) |
| Temperature | cool |
| Nearest name | Rich Black (#0D1B2A) |
| Black text | 1.12:1 |
| White text | 18.62:1 |
Values
| HEX | #00122F |
| RGB | rgb(0, 18, 47) |
| HSL | hsl(217, 100%, 9%) |
| OKLCH | oklch(18.7% 0.065 256.3) |
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 #00122F | 18.62:1 | AAA | Lc -107.1 | Preferred for body text |
| Black text on #00122F | 1.12:1 | Fails | Lc 0.0 | Not readable |
| #00122F text on white | 18.62:1 | AAA | Lc 104.9 | Preferred for body text |
| #00122F text on black | 1.12:1 | 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
#F1F6FC
oklch(97.1% 0.01 252.8)
-
Step 100
100
#E1EBF9
oklch(93.7% 0.022 256.7)
-
Step 200
200
#C7DBF6
oklch(88.5% 0.043 255.9)
-
Step 300
300
#A1C3F2
oklch(80.9% 0.076 256.6)
-
Step 400
400
#6CA3EC
oklch(70.8% 0.122 255.9)
-
Step 500
500
#4389E6
oklch(63% 0.157 256.5)
-
Step 600
600
#2071D4
oklch(55.6% 0.17 256.3)
-
Step 700
700
#115EB8
oklch(49.1% 0.159 256.3)
-
Step 800
800
#134D95
oklch(42.7% 0.132 256.5)
-
Step 900
900
#184176
oklch(37.7% 0.101 256.3)
-
Step 950
950 (this color)
#00122F
oklch(18.7% 0.065 256.3)
#00122F 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) | #021530 | 0.012 |
| Deuteranopia (no green cones) | #00112E | 0.004 |
| Tritanopia (no blue cones) | #00191E | 0.048 |
| Achromatopsia (no color) | #131313 | 0.065 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #00122F
#00122F
oklch(18.7% 0.065 256.3)
- #1D1000
#1D1000
oklch(18.7% 0.039 75.2)
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 #00122F, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Rich Black #0D1B2A ΔE 0.042
- Dark Navy #000435 ΔE 0.043
- Navy Blue #001146 ΔE 0.045
- Rich Navy #001219 ΔE 0.046
- Dark Navy Blue #00022E ΔE 0.052
- Very Dark Blue #000133 ΔE 0.053
- Midnight #03012D ΔE 0.054
- Night Blue #040348 ΔE 0.058
Use #00122F 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.