#134F76
Closest named color: Deep Sea Blue (#015482). oklch(41.1% 0.088 242.7), rgb(19, 79, 118).
Aa
White text reads best on this color (8.72:1).
About this color
#134F76 is a dark, moderately saturated blue. In OKLCH its lightness is 41%, its chroma 0.088 and its hue 243°. Its hue sits on the cool side of the wheel. The nearest named color is Deep Sea Blue (#015482), ΔE 0.022 away. White text reads best on it, at 8.72:1.
| Hue family | Blues |
| Lightness | dark (41%) |
| Chroma | moderately saturated (0.088) |
| Temperature | cool |
| Nearest name | Deep Sea Blue (#015482) |
| Black text | 2.40:1 |
| White text | 8.72:1 |
Values
| HEX | #134F76 |
| RGB | rgb(19, 79, 118) |
| HSL | hsl(204, 72%, 27%) |
| OKLCH | oklch(41.1% 0.088 242.7) |
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 #134F76 | 8.72:1 | AAA | Lc -94.1 | Preferred for body text |
| Black text on #134F76 | 2.40:1 | Fails | Lc 14.4 | Not readable |
| #134F76 text on white | 8.72:1 | AAA | Lc 89.5 | Fine for body text |
| #134F76 text on black | 2.40:1 | Fails | Lc -12.7 | 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 800.
-
Step 50
50
#F2F6FA
oklch(97.1% 0.007 247.9)
-
Step 100
100
#E2EBF3
oklch(93.6% 0.015 244.7)
-
Step 200
200
#CADCEB
oklch(88.6% 0.028 243.1)
-
Step 300
300
#A5C5E0
oklch(80.9% 0.052 243.9)
-
Step 400
400
#72A7D0
oklch(70.7% 0.082 242.6)
-
Step 500
500
#4A90C4
oklch(63% 0.106 243)
-
Step 600
600
#287AB0
oklch(55.6% 0.114 242.2)
-
Step 700
700
#1A6698
oklch(49.1% 0.107 243.2)
-
Step 800
800 (this color)
#134F76
oklch(41.1% 0.088 242.7)
-
Step 900
900
#1C4563
oklch(37.6% 0.069 243.3)
-
Step 950
950
#12293A
oklch(27.1% 0.043 242.6)
#134F76 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) | #3D5078 | 0.041 |
| Deuteranopia (no green cones) | #2F4775 | 0.031 |
| Tritanopia (no blue cones) | #00595D | 0.061 |
| Achromatopsia (no color) | #4B4B4B | 0.088 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #134F76
#134F76
oklch(41.1% 0.088 242.7)
- #6B3E0A
#6B3E0A
oklch(41% 0.088 62.9)
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 #134F76, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Deep Sea Blue #015482 ΔE 0.022
- Light Navy #155084 ΔE 0.024
- Twilight Blue #0A437A ΔE 0.040
- Dusk Blue #26538D ΔE 0.043
- Dark Grey Blue #29465B ΔE 0.048
- Light Navy Blue #2E5A88 ΔE 0.050
- Cobalt #1E488F ΔE 0.051
- Deep Teal #00555A ΔE 0.058
Use #134F76 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.