#121744
Closest named color: Navy Blue (#001146). oklch(23.2% 0.084 273.1), rgb(18, 23, 68).
Aa
White text reads best on this color (17.04:1).
About this color
#121744 is a very dark, moderately saturated blue. In OKLCH its lightness is 23%, its chroma 0.084 and its hue 273°. Its hue sits on the cool side of the wheel. The nearest named color is Navy Blue (#001146), ΔE 0.033 away. White text reads best on it, at 17.04:1.
| Hue family | Blues |
| Lightness | very dark (23%) |
| Chroma | moderately saturated (0.084) |
| Temperature | cool |
| Nearest name | Navy Blue (#001146) |
| Black text | 1.23:1 |
| White text | 17.04:1 |
Values
| HEX | #121744 |
| RGB | rgb(18, 23, 68) |
| HSL | hsl(234, 58%, 17%) |
| OKLCH | oklch(23.2% 0.084 273.1) |
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 #121744 | 17.04:1 | AAA | Lc -106.1 | Preferred for body text |
| Black text on #121744 | 1.23:1 | Fails | Lc 0.0 | Not readable |
| #121744 text on white | 17.04:1 | AAA | Lc 103.7 | Preferred for body text |
| #121744 text on black | 1.23:1 | 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
#F2F5FF
oklch(97.1% 0.014 272.7)
-
Step 100
100
#E3E9FE
oklch(93.6% 0.029 273.1)
-
Step 200
200
#CDD7FF
oklch(88.4% 0.056 274.2)
-
Step 300
300
#ACBDFF
oklch(80.9% 0.095 273)
-
Step 400
400
#8297FF
oklch(70.6% 0.154 273.2)
-
Step 500
500
#6579FF
oklch(63.1% 0.198 273)
-
Step 600
600
#4F5CF1
oklch(55.6% 0.221 273)
-
Step 700
700
#414AD2
oklch(49.1% 0.205 273.1)
-
Step 800
800
#353EAA
oklch(42.7% 0.171 273.1)
-
Step 900
900
#2D3786
oklch(37.8% 0.131 272.9)
-
Step 950
950 (this color)
#121744
oklch(23.2% 0.084 273.1)
#121744 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) | #001E46 | 0.026 |
| Deuteranopia (no green cones) | #001A43 | 0.022 |
| Tritanopia (no blue cones) | #00222A | 0.070 |
| Achromatopsia (no color) | #1C1C1C | 0.084 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #121744
#121744
oklch(23.2% 0.084 273.1)
- #251D00
#251D00
oklch(23.3% 0.048 94.4)
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 #121744, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Navy Blue #001146 ΔE 0.033
- Dark Indigo #1F0954 ΔE 0.044
- Rich Black #0D1B2A ΔE 0.055
- Night Blue #040348 ΔE 0.056
- Oxford Blue #1B263B ΔE 0.057
- Dark #1B2431 ΔE 0.063
- Darkblue #030764 ΔE 0.068
- Midnight Purple #280137 ΔE 0.071
Use #121744 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.