#136AE4
Closest named color: Cerulean Blue (#056EEE). oklch(55.1% 0.201 259), rgb(19, 106, 228).
Aa
White text reads best on this color (4.98:1).
About this color
#136AE4 is a medium-dark, vivid blue. In OKLCH its lightness is 55%, its chroma 0.201 and its hue 259°. Its hue sits on the cool side of the wheel. The nearest named color is Cerulean Blue (#056EEE), ΔE 0.017 away. White text reads best on it, at 4.98:1.
| Hue family | Blues |
| Lightness | medium-dark (55%) |
| Chroma | vivid (0.201) |
| Temperature | cool |
| Nearest name | Cerulean Blue (#056EEE) |
| Black text | 4.20:1 |
| White text | 4.98:1 |
Values
| HEX | #136AE4 |
| RGB | rgb(19, 106, 228) |
| HSL | hsl(215, 85%, 48%) |
| OKLCH | oklch(55.1% 0.201 259) |
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 #136AE4 | 4.98:1 | AA | Lc -79.2 | Fine for body text |
| Black text on #136AE4 | 4.20:1 | AA large text | Lc 30.3 | Non-text elements, placeholder text |
| #136AE4 text on white | 4.98:1 | AA | Lc 73.7 | Content text, not long reading |
| #136AE4 text on black | 4.20:1 | AA large text | Lc -28.0 | 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 600.
-
Step 50
50
#F1F6FE
oklch(97.2% 0.012 259.8)
-
Step 100
100
#E0EBFC
oklch(93.7% 0.026 259)
-
Step 200
200
#C6DBFB
oklch(88.6% 0.05 258.7)
-
Step 300
300
#9DC2FB
oklch(80.8% 0.091 258.9)
-
Step 400
400
#67A0FA
oklch(70.6% 0.146 259.2)
-
Step 500
500
#3C85F7
oklch(63% 0.186 259.2)
-
Step 600
600 (this color)
#136AE4
oklch(55.1% 0.201 259)
-
Step 700
700
#0559C8
oklch(49.2% 0.187 259)
-
Step 800
800
#0B49A1
oklch(42.6% 0.155 259.1)
-
Step 900
900
#133F80
oklch(37.8% 0.12 258.7)
-
Step 950
950
#0D254B
oklch(27% 0.077 259.3)
#136AE4 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) | #0079E8 | 0.038 |
| Deuteranopia (no green cones) | #0067E2 | 0.010 |
| Tritanopia (no blue cones) | #00889D | 0.151 |
| Achromatopsia (no color) | #6F6F6F | 0.201 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #136AE4
#136AE4
oklch(55.1% 0.201 259)
- #956800
#956800
oklch(55% 0.114 78.8)
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 #136AE4, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Cerulean Blue #056EEE ΔE 0.017
- Royal Blue #4169E1 ΔE 0.030
- Azul #1D5DEC ΔE 0.033
- Bright Blue #0165FC ΔE 0.039
- Neon Blue #4361EE ΔE 0.039
- Clear Blue #247AFD ΔE 0.056
- Warm Blue #4B57DB ΔE 0.056
- Electric Blue #0652FF ΔE 0.067
Use #136AE4 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.