#121435
Closest named color: Rich Black (#0D1B2A). oklch(21.1% 0.064 276.9), rgb(18, 20, 53).
Aa
White text reads best on this color (17.83:1).
About this color
#121435 is a very dark, muted blue. In OKLCH its lightness is 21%, its chroma 0.064 and its hue 277°. Its hue sits on the cool side of the wheel. The nearest named color is Rich Black (#0D1B2A), ΔE 0.036 away. White text reads best on it, at 17.83:1.
| Hue family | Blues |
| Lightness | very dark (21%) |
| Chroma | muted (0.064) |
| Temperature | cool |
| Nearest name | Rich Black (#0D1B2A) |
| Black text | 1.17:1 |
| White text | 17.83:1 |
Values
| HEX | #121435 |
| RGB | rgb(18, 20, 53) |
| HSL | hsl(237, 49%, 14%) |
| OKLCH | oklch(21.1% 0.064 276.9) |
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 #121435 | 17.83:1 | AAA | Lc -106.7 | Preferred for body text |
| Black text on #121435 | 1.17:1 | Fails | Lc 0.0 | Not readable |
| #121435 text on white | 17.83:1 | AAA | Lc 104.5 | Preferred for body text |
| #121435 text on black | 1.17:1 | 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
#F3F5FC
oklch(97.1% 0.01 273.4)
-
Step 100
100
#E6E9F9
oklch(93.6% 0.022 277.5)
-
Step 200
200
#D1D7F5
oklch(88.4% 0.042 276.6)
-
Step 300
300
#B4BDF2
oklch(81% 0.076 277.1)
-
Step 400
400
#8E99EB
oklch(70.8% 0.12 277)
-
Step 500
500
#737DE5
oklch(63% 0.155 276.8)
-
Step 600
600
#5D64D3
oklch(55.6% 0.168 276.7)
-
Step 700
700
#4D52B7
oklch(49.1% 0.157 276.8)
-
Step 800
800
#3F4494
oklch(42.7% 0.129 276.7)
-
Step 900
900
#353A76
oklch(37.7% 0.101 276.8)
-
Step 950
950 (this color)
#121435
oklch(21.1% 0.064 276.9)
#121435 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) | #031936 | 0.024 |
| Deuteranopia (no green cones) | #001634 | 0.026 |
| Tritanopia (no blue cones) | #021C22 | 0.056 |
| Achromatopsia (no color) | #181818 | 0.064 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #121435
#121435
oklch(21.1% 0.064 276.9)
- #1E1800
#1E1800
oklch(21% 0.043 96.8)
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 #121435, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Rich Black #0D1B2A ΔE 0.036
- Navy Blue #001146 ΔE 0.043
- Dark #1B2431 ΔE 0.060
- Night Blue #040348 ΔE 0.061
- Dark Navy #000435 ΔE 0.063
- Oxford Blue #1B263B ΔE 0.063
- Midnight Purple #280137 ΔE 0.063
- Dark Indigo #1F0954 ΔE 0.066
Use #121435 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.