#134183
Closest named color: Twilight Blue (#0A437A). oklch(38.5% 0.122 258.3), rgb(19, 65, 131).
Aa
White text reads best on this color (9.94:1).
About this color
#134183 is a dark, moderately saturated blue. In OKLCH its lightness is 39%, its chroma 0.122 and its hue 258°. Its hue sits on the cool side of the wheel. The nearest named color is Twilight Blue (#0A437A), ΔE 0.018 away. White text reads best on it, at 9.94:1.
| Hue family | Blues |
| Lightness | dark (39%) |
| Chroma | moderately saturated (0.122) |
| Temperature | cool |
| Nearest name | Twilight Blue (#0A437A) |
| Black text | 2.11:1 |
| White text | 9.94:1 |
Values
| HEX | #134183 |
| RGB | rgb(19, 65, 131) |
| HSL | hsl(215, 75%, 29%) |
| OKLCH | oklch(38.5% 0.122 258.3) |
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 #134183 | 9.94:1 | AAA | Lc -96.8 | Preferred for body text |
| Black text on #134183 | 2.11:1 | Fails | Lc 11.3 | Not readable |
| #134183 text on white | 9.94:1 | AAA | Lc 92.6 | Preferred for body text |
| #134183 text on black | 2.11:1 | Fails | Lc -9.8 | 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
#F1F6FE
oklch(97.2% 0.012 259.8)
-
Step 100
100
#DFEBFC
oklch(93.6% 0.026 257)
-
Step 200
200
#C5DBFB
oklch(88.5% 0.05 257.7)
-
Step 300
300
#9CC3FC
oklch(81% 0.091 257.8)
-
Step 400
400
#65A1FA
oklch(70.7% 0.145 258.1)
-
Step 500
500
#3886F8
oklch(63.2% 0.187 258.3)
-
Step 600
600
#0B6CE7
oklch(55.6% 0.203 258.4)
-
Step 700
700
#005AC6
oklch(49.1% 0.184 258.2)
-
Step 800
800
#054AA2
oklch(42.8% 0.156 258.3)
-
Step 900
900 (this color)
#134183
oklch(38.5% 0.122 258.3)
-
Step 950
950
#0C254B
oklch(26.9% 0.077 258.8)
#134183 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) | #1A4885 | 0.022 |
| Deuteranopia (no green cones) | #003E82 | 0.014 |
| Tritanopia (no blue cones) | #00515B | 0.094 |
| Achromatopsia (no color) | #434343 | 0.122 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #134183
#134183
oklch(38.5% 0.122 258.3)
- #5B3D00
#5B3D00
oklch(38.5% 0.08 77.5)
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 #134183, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Twilight Blue #0A437A ΔE 0.018
- Cobalt #1E488F ΔE 0.030
- Light Navy #155084 ΔE 0.045
- Marine Blue #01386A ΔE 0.051
- Deep Sea Blue #015482 ΔE 0.056
- Dusk Blue #26538D ΔE 0.058
- Dark Slate Blue #483D8B ΔE 0.066
- Blueberry #464196 ΔE 0.069
Use #134183 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.