#126D9A
Closest named color: Ocean Blue (#03719C). oklch(50.8% 0.106 237.4), rgb(18, 109, 154).
Aa
White text reads best on this color (5.70:1).
About this color
#126D9A is a medium-dark, moderately saturated blue. In OKLCH its lightness is 51%, its chroma 0.106 and its hue 237°. Its hue sits on the cool side of the wheel. The nearest named color is Ocean Blue (#03719C), ΔE 0.011 away. White text reads best on it, at 5.70:1.
| Hue family | Blues |
| Lightness | medium-dark (51%) |
| Chroma | moderately saturated (0.106) |
| Temperature | cool |
| Nearest name | Ocean Blue (#03719C) |
| Black text | 3.67:1 |
| White text | 5.70:1 |
Values
| HEX | #126D9A |
| RGB | rgb(18, 109, 154) |
| HSL | hsl(200, 79%, 34%) |
| OKLCH | oklch(50.8% 0.106 237.4) |
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 #126D9A | 5.70:1 | AA | Lc -83.4 | Fine for body text |
| Black text on #126D9A | 3.67:1 | AA large text | Lc 26.0 | Dividers and decoration only |
| #126D9A text on white | 5.70:1 | AA | Lc 78.1 | Fine for body text |
| #126D9A text on black | 3.67:1 | AA large text | Lc -23.7 | 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
#E1ECF3
oklch(93.7% 0.015 235.4)
-
Step 200
200
#C8DCEA
oklch(88.4% 0.029 238.3)
-
Step 300
300
#A2C6DE
oklch(80.8% 0.051 237.5)
-
Step 400
400
#6EA8CE
oklch(70.6% 0.082 238.2)
-
Step 500
500
#4392C1
oklch(63.1% 0.105 237.8)
-
Step 600
600
#1A7CAD
oklch(55.6% 0.113 237)
-
Step 700
700 (this color)
#126D9A
oklch(50.8% 0.106 237.4)
-
Step 800
800
#0F5579
oklch(42.7% 0.088 237.7)
-
Step 900
900
#174661
oklch(37.6% 0.068 237.9)
-
Step 950
950
#0F2939
oklch(26.9% 0.044 238.4)
#126D9A 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) | #576D9C | 0.059 |
| Deuteranopia (no green cones) | #456199 | 0.047 |
| Tritanopia (no blue cones) | #00797D | 0.068 |
| Achromatopsia (no color) | #666666 | 0.106 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #126D9A
#126D9A
oklch(50.8% 0.106 237.4)
- #92541E
#92541E
oklch(50.9% 0.106 57.4)
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 #126D9A, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Ocean Blue #03719C ΔE 0.011
- Peacock Blue #016795 ΔE 0.020
- Sea Blue #047495 ΔE 0.024
- Muted Blue #3B719F ΔE 0.032
- Denim #3B638C ΔE 0.038
- Flat Blue #3C73A8 ΔE 0.041
- Mid Blue #276AB3 ΔE 0.045
- Nice Blue #107AB0 ΔE 0.047
Use #126D9A 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.