#135AAF
Closest named color: Mid Blue (#276AB3). oklch(47.6% 0.151 256.4), rgb(19, 90, 175).
Aa
White text reads best on this color (6.75:1).
About this color
#135AAF is a medium-dark, vivid blue. In OKLCH its lightness is 48%, its chroma 0.151 and its hue 256°. Its hue sits on the cool side of the wheel. The nearest named color is Mid Blue (#276AB3), ΔE 0.048 away. White text reads best on it, at 6.75:1.
| Hue family | Blues |
| Lightness | medium-dark (48%) |
| Chroma | vivid (0.151) |
| Temperature | cool |
| Nearest name | Mid Blue (#276AB3) |
| Black text | 3.10:1 |
| White text | 6.75:1 |
Values
| HEX | #135AAF |
| RGB | rgb(19, 90, 175) |
| HSL | hsl(213, 80%, 38%) |
| OKLCH | oklch(47.6% 0.151 256.4) |
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 #135AAF | 6.75:1 | AA | Lc -87.7 | Fine for body text |
| Black text on #135AAF | 3.10:1 | AA large text | Lc 21.3 | Dividers and decoration only |
| #135AAF text on white | 6.75:1 | AA | Lc 82.7 | Fine for body text |
| #135AAF text on black | 3.10:1 | AA large text | Lc -19.2 | Dividers and decoration only |
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 700.
-
Step 50
50
#F1F6FC
oklch(97.1% 0.01 252.8)
-
Step 100
100
#E1EBF8
oklch(93.6% 0.021 254.9)
-
Step 200
200
#C8DBF4
oklch(88.5% 0.04 255.3)
-
Step 300
300
#A2C3F0
oklch(80.9% 0.073 256.2)
-
Step 400
400
#6FA3E9
oklch(70.8% 0.117 256.1)
-
Step 500
500
#478AE2
oklch(63.2% 0.15 256.1)
-
Step 600
600
#2771D0
oklch(55.5% 0.163 256.6)
-
Step 700
700 (this color)
#135AAF
oklch(47.6% 0.151 256.4)
-
Step 800
800
#184E92
oklch(42.8% 0.125 256.3)
-
Step 900
900
#1A4174
oklch(37.6% 0.098 256.3)
-
Step 950
950
#112744
oklch(27.1% 0.061 256.1)
#135AAF 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) | #2863B2 | 0.030 |
| Deuteranopia (no green cones) | #0055AD | 0.017 |
| Tritanopia (no blue cones) | #006F7C | 0.114 |
| Achromatopsia (no color) | #5B5B5B | 0.151 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #135AAF
#135AAF
oklch(47.6% 0.151 256.4)
- #7C5300
#7C5300
oklch(47.5% 0.1 75.9)
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 #135AAF, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Mid Blue #276AB3 ΔE 0.048
- Denim Blue #3B5B92 ΔE 0.055
- Dusk Blue #26538D ΔE 0.056
- Peacock Blue #016795 ΔE 0.061
- Light Navy Blue #2E5A88 ΔE 0.065
- Dusky Blue #475F94 ΔE 0.065
- French Blue #436BAD ΔE 0.066
- Cobalt #1E488F ΔE 0.067
Use #135AAF 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.