#007CD9
Closest named color: Water Blue (#0E87CC). oklch(58% 0.168 250.9), rgb(0, 124, 217).
Aa
Black text reads best on this color (4.88:1).
About this color
#007CD9 is a medium-dark, vivid blue. In OKLCH its lightness is 58%, its chroma 0.168 and its hue 251°. Its hue sits on the cool side of the wheel. The nearest named color is Water Blue (#0E87CC), ΔE 0.040 away. Black text reads best on it, at 4.88:1.
| Hue family | Blues |
| Lightness | medium-dark (58%) |
| Chroma | vivid (0.168) |
| Temperature | cool |
| Nearest name | Water Blue (#0E87CC) |
| Black text | 4.88:1 |
| White text | 4.29:1 |
Values
| HEX | #007CD9 |
| RGB | rgb(0, 124, 217) |
| HSL | hsl(206, 100%, 43%) |
| OKLCH | oklch(58% 0.168 250.9) |
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 #007CD9 | 4.29:1 | AA large text | Lc -74.5 | Content text, not long reading |
| Black text on #007CD9 | 4.88:1 | AA | Lc 35.1 | Non-text elements, placeholder text |
| #007CD9 text on white | 4.29:1 | AA large text | Lc 69.0 | Content text, not long reading |
| #007CD9 text on black | 4.88:1 | AA | Lc -32.7 | 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
#F1F6FC
oklch(97.1% 0.01 252.8)
-
Step 100
100
#DFEBF8
oklch(93.5% 0.022 250.2)
-
Step 200
200
#C5DCF5
oklch(88.5% 0.042 250.5)
-
Step 300
300
#9CC5F1
oklch(81% 0.076 250.6)
-
Step 400
400
#64A5E9
oklch(70.7% 0.121 250.9)
-
Step 500
500
#328DE3
oklch(63.2% 0.155 250.8)
-
Step 600
600 (this color)
#007CD9
oklch(58% 0.168 250.9)
-
Step 700
700
#0062AE
oklch(49.1% 0.143 251.1)
-
Step 800
800
#005090
oklch(42.7% 0.125 251.1)
-
Step 900
900
#0B4375
oklch(37.8% 0.101 251)
-
Step 950
950
#0A2844
oklch(27.1% 0.063 250.1)
#007CD9 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) | #4B83DD | 0.047 |
| Deuteranopia (no green cones) | #2172D7 | 0.026 |
| Tritanopia (no blue cones) | #0093A0 | 0.123 |
| Achromatopsia (no color) | #7A7A7A | 0.168 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #007CD9
#007CD9
oklch(58% 0.168 250.9)
- #A86B00
#A86B00
oklch(58% 0.125 70.6)
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 #007CD9, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Water Blue #0E87CC ΔE 0.040
- Windows Blue #3778BF ΔE 0.043
- Cerulean Blue #056EEE ΔE 0.051
- Royal Blue #4169E1 ΔE 0.056
- Clear Blue #247AFD ΔE 0.057
- Nice Blue #107AB0 ΔE 0.063
- Dark Sky Blue #448EE4 ΔE 0.064
- Cool Blue #4984B8 ΔE 0.070
Use #007CD9 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.