#156ABC
Closest named color: Mid Blue (#276AB3). oklch(52.2% 0.149 252.8), rgb(21, 106, 188).
Aa
White text reads best on this color (5.49:1).
About this color
#156ABC is a medium-dark, vivid blue. In OKLCH its lightness is 52%, its chroma 0.149 and its hue 253°. Its hue sits on the cool side of the wheel. The nearest named color is Mid Blue (#276AB3), ΔE 0.016 away. White text reads best on it, at 5.49:1.
| Hue family | Blues |
| Lightness | medium-dark (52%) |
| Chroma | vivid (0.149) |
| Temperature | cool |
| Nearest name | Mid Blue (#276AB3) |
| Black text | 3.81:1 |
| White text | 5.49:1 |
Values
| HEX | #156ABC |
| RGB | rgb(21, 106, 188) |
| HSL | hsl(209, 80%, 41%) |
| OKLCH | oklch(52.2% 0.149 252.8) |
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 #156ABC | 5.49:1 | AA | Lc -82.2 | Fine for body text |
| Black text on #156ABC | 3.81:1 | AA large text | Lc 27.2 | Dividers and decoration only |
| #156ABC text on white | 5.49:1 | AA | Lc 76.9 | Fine for body text |
| #156ABC text on black | 3.81:1 | AA large text | Lc -24.9 | 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
#E0EBF8
oklch(93.6% 0.021 252.5)
-
Step 200
200
#C7DBF4
oklch(88.4% 0.041 254)
-
Step 300
300
#A0C4EF
oklch(80.9% 0.072 253.1)
-
Step 400
400
#6AA4E7
oklch(70.7% 0.116 252.9)
-
Step 500
500
#3F8CE0
oklch(63.2% 0.148 252.9)
-
Step 600
600
#1674CD
oklch(55.6% 0.16 252.7)
-
Step 700
700 (this color)
#156ABC
oklch(52.2% 0.149 252.8)
-
Step 800
800
#0B4F90
oklch(42.6% 0.124 253)
-
Step 900
900
#144273
oklch(37.6% 0.097 253.1)
-
Step 950
950
#0E2743
oklch(26.9% 0.061 253.2)
#156ABC 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) | #3F71BF | 0.038 |
| Deuteranopia (no green cones) | #1D62BA | 0.021 |
| Tritanopia (no blue cones) | #007E8A | 0.110 |
| Achromatopsia (no color) | #696969 | 0.149 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #156ABC
#156ABC
oklch(52.2% 0.149 252.8)
- #905D00
#905D00
oklch(52.2% 0.111 72.3)
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 #156ABC, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Mid Blue #276AB3 ΔE 0.016
- French Blue #436BAD ΔE 0.040
- Windows Blue #3778BF ΔE 0.048
- Flat Blue #3C73A8 ΔE 0.052
- Nice Blue #107AB0 ΔE 0.053
- Muted Blue #3B719F ΔE 0.059
- Ocean Blue #03719C ΔE 0.059
- Peacock Blue #016795 ΔE 0.063
Use #156ABC 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.