#102433
Closest named color: Dark (#1B2431). oklch(25.1% 0.039 242.8), rgb(16, 36, 51).
Aa
White text reads best on this color (15.88:1).
About this color
#102433 is a dark, muted blue. In OKLCH its lightness is 25%, its chroma 0.039 and its hue 243°. Its hue sits on the cool side of the wheel. The nearest named color is Dark (#1B2431), ΔE 0.015 away. White text reads best on it, at 15.88:1.
| Hue family | Blues |
| Lightness | dark (25%) |
| Chroma | muted (0.039) |
| Temperature | cool |
| Nearest name | Dark (#1B2431) |
| Black text | 1.32:1 |
| White text | 15.88:1 |
Values
| HEX | #102433 |
| RGB | rgb(16, 36, 51) |
| HSL | hsl(206, 52%, 13%) |
| OKLCH | oklch(25.1% 0.039 242.8) |
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 #102433 | 15.88:1 | AAA | Lc -105.4 | Preferred for body text |
| Black text on #102433 | 1.32:1 | Fails | Lc 0.0 | Not readable |
| #102433 text on white | 15.88:1 | AAA | Lc 102.8 | Preferred for body text |
| #102433 text on black | 1.32:1 | 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
#F2F6F9
oklch(97.1% 0.006 239.8)
-
Step 100
100
#E3EBF2
oklch(93.6% 0.013 244.3)
-
Step 200
200
#CBDCE9
oklch(88.6% 0.026 240.7)
-
Step 300
300
#A8C5DC
oklch(80.9% 0.045 242.1)
-
Step 400
400
#78A6CB
oklch(70.6% 0.074 243.3)
-
Step 500
500
#5390BE
oklch(63.1% 0.094 242.8)
-
Step 600
600
#3679AA
oklch(55.5% 0.102 243.3)
-
Step 700
700
#286692
oklch(49.1% 0.095 243.1)
-
Step 800
800
#235376
oklch(42.6% 0.078 243.2)
-
Step 900
900
#22455F
oklch(37.7% 0.06 242.8)
-
Step 950
950 (this color)
#102433
oklch(25.1% 0.039 242.8)
#102433 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) | #1D2434 | 0.019 |
| Deuteranopia (no green cones) | #192133 | 0.015 |
| Tritanopia (no blue cones) | #002829 | 0.032 |
| Achromatopsia (no color) | #222222 | 0.039 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #102433
#102433
oklch(25.1% 0.039 242.8)
- #2F1E0D
#2F1E0D
oklch(25.2% 0.039 64.5)
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 #102433, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark #1B2431 ΔE 0.015
- Oxford Blue #1B263B ΔE 0.023
- Jet #212529 ΔE 0.031
- Rich Black #0D1B2A ΔE 0.034
- Space Cadet #2B2D42 ΔE 0.059
- Gunmetal #293241 ΔE 0.065
- Navy Blue #001146 ΔE 0.079
- Midnight Green #073B4C ΔE 0.082
Use #102433 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.