#007EB3
Closest named color: Nice Blue (#107AB0). oklch(56.2% 0.122 236.8), rgb(0, 126, 179).
Aa
Black text reads best on this color (4.63:1).
About this color
#007EB3 is a medium-dark, moderately saturated blue. In OKLCH its lightness is 56%, its chroma 0.122 and its hue 237°. Its hue sits on the cool side of the wheel. The nearest named color is Nice Blue (#107AB0), ΔE 0.011 away. Black text reads best on it, at 4.63:1.
| Hue family | Blues |
| Lightness | medium-dark (56%) |
| Chroma | moderately saturated (0.122) |
| Temperature | cool |
| Nearest name | Nice Blue (#107AB0) |
| Black text | 4.63:1 |
| White text | 4.53:1 |
Values
| HEX | #007EB3 |
| RGB | rgb(0, 126, 179) |
| HSL | hsl(198, 100%, 35%) |
| OKLCH | oklch(56.2% 0.122 236.8) |
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 #007EB3 | 4.53:1 | AA | Lc -76.3 | Fine for body text |
| Black text on #007EB3 | 4.63:1 | AA | Lc 33.3 | Non-text elements, placeholder text |
| #007EB3 text on white | 4.53:1 | AA | Lc 70.8 | Content text, not long reading |
| #007EB3 text on black | 4.63:1 | AA | Lc -30.8 | Non-text elements, placeholder text |
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
#F1F6FA
oklch(97.1% 0.008 241.7)
-
Step 100
100
#E0ECF3
oklch(93.6% 0.016 233)
-
Step 200
200
#C7DDEB
oklch(88.6% 0.03 235.7)
-
Step 300
300
#A0C7E0
oklch(81% 0.055 236.5)
-
Step 400
400
#69A9D1
oklch(70.7% 0.088 237.3)
-
Step 500
500
#3993C5
oklch(63.2% 0.113 237)
-
Step 600
600 (this color)
#007EB3
oklch(56.2% 0.122 236.8)
-
Step 700
700
#006895
oklch(49% 0.107 237)
-
Step 800
800
#00557B
oklch(42.6% 0.093 237.2)
-
Step 900
900
#104763
oklch(37.8% 0.073 236.2)
-
Step 950
950
#0C2A3A
oklch(27.1% 0.046 235.5)
#007EB3 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) | #647EB5 | 0.069 |
| Deuteranopia (no green cones) | #4E70B2 | 0.055 |
| Tritanopia (no blue cones) | #008C91 | 0.077 |
| Achromatopsia (no color) | #767676 | 0.122 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #007EB3
#007EB3
oklch(56.2% 0.122 236.8)
- #AA5F1E
#AA5F1E
oklch(56.2% 0.123 56.3)
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 #007EB3, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Nice Blue #107AB0 ΔE 0.011
- Windows Blue #3778BF ΔE 0.036
- Blue NCS #118AB2 ΔE 0.037
- Flat Blue #3C73A8 ΔE 0.037
- Steel Blue #4682B4 ΔE 0.039
- Water Blue #0E87CC ΔE 0.043
- Cerulean #457B9D ΔE 0.044
- Cool Blue #4984B8 ΔE 0.045
Use #007EB3 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.