#156AA5
Closest named color: Mid Blue (#276AB3). oklch(50.7% 0.12 245.5), rgb(21, 106, 165).
Aa
White text reads best on this color (5.77:1).
About this color
#156AA5 is a medium-dark, moderately saturated blue. In OKLCH its lightness is 51%, its chroma 0.120 and its hue 246°. Its hue sits on the cool side of the wheel. The nearest named color is Mid Blue (#276AB3), ΔE 0.025 away. White text reads best on it, at 5.77:1.
| Hue family | Blues |
| Lightness | medium-dark (51%) |
| Chroma | moderately saturated (0.120) |
| Temperature | cool |
| Nearest name | Mid Blue (#276AB3) |
| Black text | 3.63:1 |
| White text | 5.77:1 |
Values
| HEX | #156AA5 |
| RGB | rgb(21, 106, 165) |
| HSL | hsl(205, 77%, 36%) |
| OKLCH | oklch(50.7% 0.12 245.5) |
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 #156AA5 | 5.77:1 | AA | Lc -83.7 | Fine for body text |
| Black text on #156AA5 | 3.63:1 | AA large text | Lc 25.6 | Dividers and decoration only |
| #156AA5 text on white | 5.77:1 | AA | Lc 78.4 | Fine for body text |
| #156AA5 text on black | 3.63:1 | AA large text | Lc -23.4 | 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
#F1F6FA
oklch(97.1% 0.008 241.7)
-
Step 100
100
#E1EBF5
oklch(93.5% 0.017 248)
-
Step 200
200
#C8DCEE
oklch(88.5% 0.033 245.3)
-
Step 300
300
#A2C5E4
oklch(80.8% 0.058 245.3)
-
Step 400
400
#6EA7D7
oklch(70.8% 0.093 245)
-
Step 500
500
#4490CD
oklch(63.2% 0.119 245.5)
-
Step 600
600
#1D79B9
oklch(55.7% 0.128 245.1)
-
Step 700
700 (this color)
#156AA5
oklch(50.7% 0.12 245.5)
-
Step 800
800
#115382
oklch(42.8% 0.1 245.6)
-
Step 900
900
#184568
oklch(37.8% 0.077 245.6)
-
Step 950
950
#0F293D
oklch(27.1% 0.049 244.3)
#156AA5 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) | #4E6DA7 | 0.049 |
| Deuteranopia (no green cones) | #3960A4 | 0.034 |
| Tritanopia (no blue cones) | #00787F | 0.084 |
| Achromatopsia (no color) | #666666 | 0.120 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #156AA5
#156AA5
oklch(50.7% 0.12 245.5)
- #905500
#905500
oklch(50.6% 0.113 65.3)
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 #156AA5, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Mid Blue #276AB3 ΔE 0.025
- Peacock Blue #016795 ΔE 0.028
- Ocean Blue #03719C ΔE 0.028
- Muted Blue #3B719F ΔE 0.037
- French Blue #436BAD ΔE 0.038
- Flat Blue #3C73A8 ΔE 0.040
- Sea Blue #047495 ΔE 0.044
- Denim #3B638C ΔE 0.045
Use #156AA5 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.