#104281
Closest named color: Twilight Blue (#0A437A). oklch(38.5% 0.118 256.7), rgb(16, 66, 129).
Aa
White text reads best on this color (9.91:1).
About this color
#104281 is a dark, moderately saturated blue. In OKLCH its lightness is 39%, its chroma 0.118 and its hue 257°. Its hue sits on the cool side of the wheel. The nearest named color is Twilight Blue (#0A437A), ΔE 0.013 away. White text reads best on it, at 9.91:1.
| Hue family | Blues |
| Lightness | dark (39%) |
| Chroma | moderately saturated (0.118) |
| Temperature | cool |
| Nearest name | Twilight Blue (#0A437A) |
| Black text | 2.11:1 |
| White text | 9.91:1 |
Values
| HEX | #104281 |
| RGB | rgb(16, 66, 129) |
| HSL | hsl(213, 78%, 28%) |
| OKLCH | oklch(38.5% 0.118 256.7) |
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 #104281 | 9.91:1 | AAA | Lc -96.7 | Preferred for body text |
| Black text on #104281 | 2.11:1 | Fails | Lc 11.4 | Not readable |
| #104281 text on white | 9.91:1 | AAA | Lc 92.5 | Preferred for body text |
| #104281 text on black | 2.11:1 | Fails | Lc -9.9 | 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 900.
-
Step 50
50
#F0F6FE
oklch(97.1% 0.012 255.5)
-
Step 100
100
#DFEBFB
oklch(93.6% 0.025 255.6)
-
Step 200
200
#C5DBFA
oklch(88.5% 0.049 256.9)
-
Step 300
300
#9CC3FA
oklch(80.9% 0.089 257)
-
Step 400
400
#63A2F7
oklch(70.7% 0.141 256.3)
-
Step 500
500
#3487F4
oklch(63% 0.182 256.8)
-
Step 600
600
#006EE2
oklch(55.6% 0.196 256.8)
-
Step 700
700
#005CBF
oklch(49% 0.172 256.8)
-
Step 800
800
#004B9E
oklch(42.6% 0.15 256.7)
-
Step 900
900 (this color)
#104281
oklch(38.5% 0.118 256.7)
-
Step 950
950
#0A264A
oklch(27% 0.075 256.3)
#104281 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) | #1E4883 | 0.022 |
| Deuteranopia (no green cones) | #003E80 | 0.015 |
| Tritanopia (no blue cones) | #00515B | 0.089 |
| Achromatopsia (no color) | #434343 | 0.118 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #104281
#104281
oklch(38.5% 0.118 256.7)
- #5C3D00
#5C3D00
oklch(38.6% 0.081 76.6)
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 #104281, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Twilight Blue #0A437A ΔE 0.013
- Cobalt #1E488F ΔE 0.031
- Light Navy #155084 ΔE 0.042
- Marine Blue #01386A ΔE 0.049
- Deep Sea Blue #015482 ΔE 0.053
- Dusk Blue #26538D ΔE 0.057
- Dark Slate Blue #483D8B ΔE 0.069
- Dark Grey Blue #29465B ΔE 0.071
Use #104281 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.