#134F97
Closest named color: Cobalt (#1E488F). oklch(43.3% 0.132 256), rgb(19, 79, 151).
Aa
White text reads best on this color (8.09:1).
About this color
#134F97 is a dark, moderately saturated blue. In OKLCH its lightness is 43%, its chroma 0.132 and its hue 256°. Its hue sits on the cool side of the wheel. The nearest named color is Cobalt (#1E488F), ΔE 0.022 away. White text reads best on it, at 8.09:1.
| Hue family | Blues |
| Lightness | dark (43%) |
| Chroma | moderately saturated (0.132) |
| Temperature | cool |
| Nearest name | Cobalt (#1E488F) |
| Black text | 2.59:1 |
| White text | 8.09:1 |
Values
| HEX | #134F97 |
| RGB | rgb(19, 79, 151) |
| HSL | hsl(213, 78%, 33%) |
| OKLCH | oklch(43.3% 0.132 256) |
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 #134F97 | 8.09:1 | AAA | Lc -92.2 | Preferred for body text |
| Black text on #134F97 | 2.59:1 | Fails | Lc 16.5 | Dividers and decoration only |
| #134F97 text on white | 8.09:1 | AAA | Lc 87.5 | Fine for body text |
| #134F97 text on black | 2.59:1 | Fails | Lc -14.6 | 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
#F1F6FD
oklch(97.1% 0.011 256.7)
-
Step 100
100
#E0EBF9
oklch(93.6% 0.022 254.4)
-
Step 200
200
#C7DBF6
oklch(88.5% 0.043 255.9)
-
Step 300
300
#A0C3F3
oklch(80.9% 0.078 256.4)
-
Step 400
400
#6BA3EC
oklch(70.7% 0.123 255.5)
-
Step 500
500
#4189E6
oklch(63% 0.158 256)
-
Step 600
600
#1D71D5
oklch(55.6% 0.172 256.1)
-
Step 700
700
#0E5EB8
oklch(49.1% 0.159 256)
-
Step 800
800 (this color)
#134F97
oklch(43.3% 0.132 256)
-
Step 900
900
#174177
oklch(37.7% 0.103 256.3)
-
Step 950
950
#0F2646
oklch(26.9% 0.066 257.2)
#134F97 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) | #27569A | 0.027 |
| Deuteranopia (no green cones) | #004A96 | 0.018 |
| Tritanopia (no blue cones) | #00606B | 0.099 |
| Achromatopsia (no color) | #505050 | 0.132 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #134F97
#134F97
oklch(43.3% 0.132 256)
- #6D4800
#6D4800
oklch(43.3% 0.091 75.4)
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 #134F97, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Cobalt #1E488F ΔE 0.022
- Dusk Blue #26538D ΔE 0.026
- Light Navy #155084 ΔE 0.032
- Deep Sea Blue #015482 ΔE 0.041
- Light Navy Blue #2E5A88 ΔE 0.050
- Denim Blue #3B5B92 ΔE 0.054
- Twilight Blue #0A437A ΔE 0.058
- Blueberry #464196 ΔE 0.060
Use #134F97 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.