#004EB7
Closest named color: Blue Blue (#2242C7). oklch(45.4% 0.179 259.4), rgb(0, 78, 183).
Aa
White text reads best on this color (7.57:1).
About this color
#004EB7 is a medium-dark, vivid blue. In OKLCH its lightness is 45%, its chroma 0.179 and its hue 259°. Its hue sits on the cool side of the wheel. The nearest named color is Blue Blue (#2242C7), ΔE 0.038 away. White text reads best on it, at 7.57:1.
| Hue family | Blues |
| Lightness | medium-dark (45%) |
| Chroma | vivid (0.179) |
| Temperature | cool |
| Nearest name | Blue Blue (#2242C7) |
| Black text | 2.77:1 |
| White text | 7.57:1 |
Values
| HEX | #004EB7 |
| RGB | rgb(0, 78, 183) |
| HSL | hsl(214, 100%, 36%) |
| OKLCH | oklch(45.4% 0.179 259.4) |
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 #004EB7 | 7.57:1 | AAA | Lc -90.3 | Preferred for body text |
| Black text on #004EB7 | 2.77:1 | Fails | Lc 18.6 | Dividers and decoration only |
| #004EB7 text on white | 7.57:1 | AAA | Lc 85.4 | Fine for body text |
| #004EB7 text on black | 2.77:1 | Fails | Lc -16.6 | 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 800.
-
Step 50
50
#F0F6FF
oklch(97.1% 0.014 258.3)
-
Step 100
100
#DEEBFF
oklch(93.6% 0.031 258.9)
-
Step 200
200
#C3DBFF
oklch(88.5% 0.056 258.4)
-
Step 300
300
#9CC2FF
oklch(80.9% 0.096 259.7)
-
Step 400
400
#64A0FF
oklch(70.8% 0.153 259.2)
-
Step 500
500
#3584FF
oklch(63.2% 0.199 259.3)
-
Step 600
600
#0069F0
oklch(55.7% 0.219 259.3)
-
Step 700
700
#0058CC
oklch(49.2% 0.194 259.3)
-
Step 800
800 (this color)
#004EB7
oklch(45.4% 0.179 259.4)
-
Step 900
900
#073C8A
oklch(37.7% 0.14 259.5)
-
Step 950
950
#082451
oklch(27% 0.089 259.7)
#004EB7 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) | #005CBB | 0.037 |
| Deuteranopia (no green cones) | #004DB5 | 0.004 |
| Tritanopia (no blue cones) | #00697B | 0.135 |
| Achromatopsia (no color) | #545454 | 0.179 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #004EB7
#004EB7
oklch(45.4% 0.179 259.4)
- #724F00
#724F00
oklch(45.4% 0.094 79.2)
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 #004EB7, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Blue Blue #2242C7 ΔE 0.038
- Sapphire #2138AB ΔE 0.054
- Cobalt #1E488F ΔE 0.066
- Majorelle Blue #3F37C9 ΔE 0.067
- Dusk Blue #26538D ΔE 0.073
- Blueberry #464196 ΔE 0.079
- Mid Blue #276AB3 ΔE 0.082
- Blue With A Hint Of Purple #533CC6 ΔE 0.083
Use #004EB7 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.